Change uploadArchives task to publish jar file

removed dependency on resource value
Fix typo
Remove dependency on password file
Delete unnecessary lines
Add message before crashing when console is null
Make tasks to generate jar out of `uploadArchives`

so as to debug without access to the sonatype server
Delete unnecessary task
Remove argument and constant value

no longer necessary thanks to BuildConfig
Remove unused method replaced by BuildConfig
Update README.md
Update README.md
Merge pull request #5 from studyplus/jar-publishing

Add archive type to publish of .jar other than current .aar