lots of little fixes to English text
add label tag to data holder types for usability

When you surround a radio button and its label with the label tag, it
improves usability by providing a larger click target; clicking on the
label selects the radio button as well as clicking on the button.
Merge pull request #1 from UCB-RAC/master

minor UI fixes
Fixed translations
Added zanata translations
Changed Showcase Repo
BZ-1032512:
- fixed error rendering form calculation on MultipleSubform when is being shown as read only.
- fixed error rendering MultipleSubform column labels
BZ-1033539: disabled browser resizing on textareas on design time to avoid errors.