added academic calendar activity
Incremented version to 1.3.2
minor fixes in CaldendarActivity
Upgrade widget UI, Some code & comment changes
Merge pull request #207 from dcofer44/master

Upgrade widget UI, Some code & comment changes
Added a comment to the Android Manifest.  Added error checking to the GPA and Credit Hour textfields.
Merge pull request #208 from jordan-r-smith/master

Comments and Error Checking