Add documentation and device screen shots for Android sample apps. Copy typo and grammar fixes to associated iOS documentation as appropriate.
Address Android SDK documentation feedback from Anu.
Update iOS Docs
Move to single a tag per item
Merge pull request #22 from contexthub/ios-doc-update

Update iOS Docs
Update developer portal docs
Update index.md

Missed a zero *(as of today)*
Merge pull request #23 from contexthub/dev-portal-update

Update developer portal docs
Merge branch 'master' into android-sample-docs
Merge pull request #21 from contexthub/android-sample-docs

Add documentation and device screen shots for Android sample apps
Merge branch 'master' into contextual-chocolate

Conflicts:
	_includes/menu.html