Added How To Build AeroGear Android in guide page
Update AGDROID to 1.3.1
Force gradle use aar
Merge branch 'pr/226'
Update UPS REST spec to proper values
whitespace
Add ChromePackagedApps to the spec docs
Merge branch 'pr/220'

closes #220
added information about the crypto plugin
changed to reflect API change
updated to new API
consistency
Merge branch 'pr/225'

closes #225
added multipart example description
rephrase based on feedback