Fix for Translation Commands in Makefile

The django-admin.py included with Django 1.7.1 requires DJANGO_SETTINGS_MODULE to be set. Also, making commands more verbose in the event an error occurs.
Removed enrollment warnings, fixes DOC-1126
Merge pull request #192 from edx/ahodges/doc/DOC1126

Removed enrollment warnings, fixes DOC-1126
Compiling SEGMENT_IGNORE_EMAIL_REGEX on app start

Compilation at app start will ensure we don't crash during a user request due to a malformed regex. The view has been updated to return a simple boolean.
Added User Admin
Updated Translations

Also added make targets to simplify the update process in the future.
Added Course Homepage
Updated no data message to remove example text.
Merge pull request #201 from edx/course-home-page

Added Course Homepage
Merge pull request #204 from edx/dsjen/update-data-msg

Updated no data message to remove example text.
Fixed demographic gender acceptance test when None type is returned for a gender.
Merge pull request #205 from edx/dsjen/gender-acceptance-test

Fixed demographic gender acceptance test when None type is returned for gender.
Added complementary xref to Instructor Dash
Merge pull request #200 from edx/ahodges/DOC1189xref

Added complementary xref to Instructor Dash
Course Homepage Updates

- Removed feature gate
- Added acceptance tests
Removed libsass requirement

Latest version of libsass no longer has gcc issue. We no longer need to use the older version.
Retrieving Course Name from Course API
Added Basic Page to Display Graded Content