Added compiled translations

[ziafazal]

This PR has compiled translations.
@pmitros Could you please merge and create a new release(1.2)?

[pmitros]

@ziafazal @e0d Can you please clarify as to the reason for including compiled files in the repo? That seems odd... Shouldn't these be built as part of the build/install process?

If not, I would still be hesitant to merge the outputs of a black box build process. There ought to be a Makefile, script, or similar (some way to rebuild them for new persons to the repo, unfamiliar with edX' i18n pipeline).

[ziafazal]

@pmitros Xblocks have to provide compiled versions of translations for themselves since current build process does not generate/compile translations for XBlocks.

XBlock developer can run this gettext command in base directory of XBlock to compile translations

$ msgfmt translations/{locale}/LC_MESSAGES/text.po -o translations/{locale}/LC_MESSAGES/text.mo 

[pmitros]

@ziafazal How about just adding that command to setup.py?

https://seasonofcode.com/posts/how-to-add-custom-build-steps-and-commands-to-setuppy.html
https://blog.niteoweb.com/setuptools-run-custom-code-in-setup-py/
https://docs.python.org/2/distutils/setupscript.html