Get all attributes of watched element

This changes the AndroidManifest parser to fetch all attributes of the
watched element instead of a specific attribute.
Remove JNDI lookup from SMTPAppender

The JNDI lookup is unsupported in logback-android. The code is effectively
dead.
Move test code from StatusChecker to unit test
Remove unused function in STEUtil
Add Android-specific variables for logback.xml (LBANDROID-16)

The following variables can now be used in logback.xml:

 * ${PACKAGE_NAME}
 * ${VERSION_NAME}
 * ${VERSION_CODE}

Issue #53
Allow relative paths outside of Android

A recent change to prepend the app's data directory to relative paths
causes test failures in OSX (which doesn't have an app data directory).
This patch does not modify relative file paths when running outside
of Android OS.
Fix warning in ReconfigureOnChangeFilter

A static class was used in a non static way.
Set minimizeJar flag to true in pom-uber
Remove unused JNDI constant
Tweak ref time for LoggingEventSerializationPerfTest