by using XmlStringBuilder. Fixes SMACK-577
Also extend LazyStringBuilder with a cache. And extend XmlStringBuilder
with some more convenience methods.
Move the ELEMENT and NAMESPACE definition from Form to DataForm, where
it belongs.
Move some duplicate code from XMPP(TCP|BOSH)Connection to
PacketParserUtils. Remove TestUtils as the method now part of Smack's
public API in PacketParserUtils.
Most importantly, rename reload() method of persistent cache to
"DiscoverInfo lookup(String nodeVer)" and lazily load the data from the
persistent cache to the memory cache.
instead of using the old baseName=smack appendix=project.name approach,
we are now going convention over configuration and renaming the
subprojects directories to the proper name.
Having a prefix is actually very helpful, because the resulting
libraries will be named like the subproject. And a core-4.0.0-rc1.jar is
not as explicit about what it actually *is* as a
smack-core-4.0.0-rc1.jar.
SMACK-265
