Merge pull request #4 from saidalbahra/master

Button changes
Merge pull request #5 from saidalbahra/master

Addition of PDF and minor interface changes
Base: Improve handling of InAppBrowser links
Merge pull request #6 from saidalbahra/master

New app icon
Base: Update all image assets
Base: Improve links by using inAppBrowser

Also remove active state on button after link is clicked
Merge pull request #2 from salbahra/master

Minor change in InAppBrowser handling