add library version for Android
update version number to 2.1.0-SNAPSHOT
update package in Manifest
add "overwrite" parameter to factory register method
add Android compatible DNS resolver
#1005 -- Presence module is not thread safe
separate snapshot repository
refactoring: change AbstractIQModule constructor
fix imports
fix NPE. added tests
ADD NPE!!!!!
REMOVE NPE!!!!!
turn off ignoring test errors in pom
#1059 -- form instructions are added ad an attribute instead of a child
element
add SASL EXTERNAL mechanism