Add AboutActivity
Removed @TargetApi due to @illarionov suggestion
Adding strings for spanish language.
Merge pull request #186 from freekzy/about_activity

Add AboutActivity
Merge pull request #188 from rodmoreno/master

Update spanish translation
Merge pull request #177 from matagus/adding-spanish-strings

Adding strings for spanish language.
Merge pull request #3 from dougt/master

Sync