GPII-726: Fixing aria label for more and less button.
GPII-726: Small corrections (commas and magnifierHeading).
GPII-726: Translation into german. 
The translation includes:
- more speak text preferences
- less speak text preferences
- more magnifier preferences
- less magnifier preferences
GPII-726: Translation into spanish.
The translation includes:
- more speak text preferences
- less speak text preferences
- more magnifier preferences
- less magnifier preferences
GPII-726: Removing some white spaces.
GPII-726: Restructuring code. Removing redundant code.
The function used for more/less toggle has been moved to
gpii.ariaUtility.
GPII-726: Removing whitespace.
GPII-726: Removing whitespace.
GPII-726: Merging dimokas' GPII-726 branch with master