diff --git a/.idea/gradle.xml b/.idea/gradle.xml
deleted file mode 100644
index e478165..0000000
--- a/.idea/gradle.xml
+++ /dev/null
@@ -1,92 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="GradleSettings">
-    <option name="linkedExternalProjectsSettings">
-      <GradleProjectSettings>
-        <compositeConfiguration>
-          <compositeBuild compositeDefinitionSource="SCRIPT">
-            <builds>
-              <build path="$PROJECT_DIR$/libs/Smack" name="Smack">
-                <projects>
-                  <project path="$PROJECT_DIR$/libs/Smack" />
-                  <project path="$PROJECT_DIR$/libs/Smack/smack-android" />
-                  <project path="$PROJECT_DIR$/libs/Smack/smack-android-extensions" />
-                  <project path="$PROJECT_DIR$/libs/Smack/smack-bosh" />
-                  <project path="$PROJECT_DIR$/libs/Smack/smack-compression-jzlib" />
-                  <project path="$PROJECT_DIR$/libs/Smack/smack-core" />
-                  <project path="$PROJECT_DIR$/libs/Smack/smack-debug" />
-                  <project path="$PROJECT_DIR$/libs/Smack/smack-debug-slf4j" />
-                  <project path="$PROJECT_DIR$/libs/Smack/smack-experimental" />
-                  <project path="$PROJECT_DIR$/libs/Smack/smack-extensions" />
-                  <project path="$PROJECT_DIR$/libs/Smack/smack-im" />
-                  <project path="$PROJECT_DIR$/libs/Smack/smack-integration-test" />
-                  <project path="$PROJECT_DIR$/libs/Smack/smack-java7" />
-                  <project path="$PROJECT_DIR$/libs/Smack/smack-jingle-old" />
-                  <project path="$PROJECT_DIR$/libs/Smack/smack-legacy" />
-                  <project path="$PROJECT_DIR$/libs/Smack/smack-omemo" />
-                  <project path="$PROJECT_DIR$/libs/Smack/smack-omemo-signal" />
-                  <project path="$PROJECT_DIR$/libs/Smack/smack-omemo-signal-integration-test" />
-                  <project path="$PROJECT_DIR$/libs/Smack/smack-openpgp" />
-                  <project path="$PROJECT_DIR$/libs/Smack/smack-repl" />
-                  <project path="$PROJECT_DIR$/libs/Smack/smack-resolver-dnsjava" />
-                  <project path="$PROJECT_DIR$/libs/Smack/smack-resolver-javax" />
-                  <project path="$PROJECT_DIR$/libs/Smack/smack-resolver-minidns" />
-                  <project path="$PROJECT_DIR$/libs/Smack/smack-resolver-minidns-dox" />
-                  <project path="$PROJECT_DIR$/libs/Smack/smack-sasl-javax" />
-                  <project path="$PROJECT_DIR$/libs/Smack/smack-sasl-provided" />
-                  <project path="$PROJECT_DIR$/libs/Smack/smack-tcp" />
-                  <project path="$PROJECT_DIR$/libs/Smack/smack-xmlparser" />
-                  <project path="$PROJECT_DIR$/libs/Smack/smack-xmlparser-stax" />
-                  <project path="$PROJECT_DIR$/libs/Smack/smack-xmlparser-xpp3" />
-                </projects>
-              </build>
-            </builds>
-          </compositeBuild>
-        </compositeConfiguration>
-        <option name="distributionType" value="DEFAULT_WRAPPED" />
-        <option name="externalProjectPath" value="$PROJECT_DIR$" />
-        <option name="modules">
-          <set>
-            <option value="$PROJECT_DIR$" />
-            <option value="$PROJECT_DIR$/app" />
-            <option value="$PROJECT_DIR$/core" />
-            <option value="$PROJECT_DIR$/libs/Smack" />
-            <option value="$PROJECT_DIR$/libs/Smack/smack-android" />
-            <option value="$PROJECT_DIR$/libs/Smack/smack-android-extensions" />
-            <option value="$PROJECT_DIR$/libs/Smack/smack-bosh" />
-            <option value="$PROJECT_DIR$/libs/Smack/smack-compression-jzlib" />
-            <option value="$PROJECT_DIR$/libs/Smack/smack-core" />
-            <option value="$PROJECT_DIR$/libs/Smack/smack-debug" />
-            <option value="$PROJECT_DIR$/libs/Smack/smack-debug-slf4j" />
-            <option value="$PROJECT_DIR$/libs/Smack/smack-experimental" />
-            <option value="$PROJECT_DIR$/libs/Smack/smack-extensions" />
-            <option value="$PROJECT_DIR$/libs/Smack/smack-im" />
-            <option value="$PROJECT_DIR$/libs/Smack/smack-integration-test" />
-            <option value="$PROJECT_DIR$/libs/Smack/smack-java7" />
-            <option value="$PROJECT_DIR$/libs/Smack/smack-jingle-old" />
-            <option value="$PROJECT_DIR$/libs/Smack/smack-legacy" />
-            <option value="$PROJECT_DIR$/libs/Smack/smack-omemo" />
-            <option value="$PROJECT_DIR$/libs/Smack/smack-omemo-signal" />
-            <option value="$PROJECT_DIR$/libs/Smack/smack-omemo-signal-integration-test" />
-            <option value="$PROJECT_DIR$/libs/Smack/smack-openpgp" />
-            <option value="$PROJECT_DIR$/libs/Smack/smack-repl" />
-            <option value="$PROJECT_DIR$/libs/Smack/smack-resolver-dnsjava" />
-            <option value="$PROJECT_DIR$/libs/Smack/smack-resolver-javax" />
-            <option value="$PROJECT_DIR$/libs/Smack/smack-resolver-minidns" />
-            <option value="$PROJECT_DIR$/libs/Smack/smack-resolver-minidns-dox" />
-            <option value="$PROJECT_DIR$/libs/Smack/smack-sasl-javax" />
-            <option value="$PROJECT_DIR$/libs/Smack/smack-sasl-provided" />
-            <option value="$PROJECT_DIR$/libs/Smack/smack-tcp" />
-            <option value="$PROJECT_DIR$/libs/Smack/smack-xmlparser" />
-            <option value="$PROJECT_DIR$/libs/Smack/smack-xmlparser-stax" />
-            <option value="$PROJECT_DIR$/libs/Smack/smack-xmlparser-xpp3" />
-            <option value="$PROJECT_DIR$/persistence" />
-            <option value="$PROJECT_DIR$/thread_utils" />
-          </set>
-        </option>
-        <option name="resolveModulePerSourceSet" value="false" />
-        <option name="testRunner" value="PLATFORM" />
-      </GradleProjectSettings>
-    </option>
-  </component>
-</project>
\ No newline at end of file
diff --git a/.idea/misc.xml b/.idea/misc.xml
deleted file mode 100644
index 974f06a..0000000
--- a/.idea/misc.xml
+++ /dev/null
@@ -1,4 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" project-jdk-name="JDK" project-jdk-type="JavaSDK" />
-</project>
\ No newline at end of file
diff --git a/.idea/runConfigurations.xml b/.idea/runConfigurations.xml
deleted file mode 100644
index 7f68460..0000000
--- a/.idea/runConfigurations.xml
+++ /dev/null
@@ -1,12 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="RunConfigurationProducerService">
-    <option name="ignoredProducers">
-      <set>
-        <option value="org.jetbrains.plugins.gradle.execution.test.runner.AllInPackageGradleConfigurationProducer" />
-        <option value="org.jetbrains.plugins.gradle.execution.test.runner.TestClassGradleConfigurationProducer" />
-        <option value="org.jetbrains.plugins.gradle.execution.test.runner.TestMethodGradleConfigurationProducer" />
-      </set>
-    </option>
-  </component>
-</project>
\ No newline at end of file
diff --git a/.idea/vcs.xml b/.idea/vcs.xml
deleted file mode 100644
index d4e6d58..0000000
--- a/.idea/vcs.xml
+++ /dev/null
@@ -1,7 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="VcsDirectoryMappings">
-    <mapping directory="" vcs="Git" />
-    <mapping directory="$PROJECT_DIR$/libs/Smack" vcs="Git" />
-  </component>
-</project>
\ No newline at end of file