Merge pull request #139 from MSOpenTech/dev

preparation for maven release with new groupid
Update README.md

"will" was missing the "w" making it "ill".
update README.md
update readme file
Merge pull request #144 from cjudd/patch-1

Update README.md
Include length info as prefix for encode_version
Added javadoc encoding

Added javadoc encoding
update pom files to use same android-support file as dev
update readme to run sample app with mvn
update ssamples webapi pom file
put properties to adal pom file to submit single pom to maven
remove cancel button and use back button action to cancel
start loading spinner at page start, update test for backpress action
add more tests for userid scenario
merge fix authenticationContextTests
fix authenticationactivity test for SDK without andoridkeystore
update test app to fix dialog
Merge pull request #209 from MSOpenTech/dev_remove_dialog

Remove cancel dialog
update exception message for review feedback
Change travis file to use latest android config
fix authenticationActivityUnitTest.java for merge