Merge branch 'release/1.0.14' into develop
Merge pull request #34 from praekelt/master

Merge branch 'release/1.0.14'
tests for mobileu
Merge pull request #35 from praekelt/feature/tests

tests for mobileu
Uses django hashers make_password to generate password from plain-text
Only send welcome sms once
Fixed sms tool logic
Fixed minor issues
Added custom Class filter for learners
pep8 fix
Merge pull request #36 from praekelt/feature/issue-26-urgent-password-bug

Feature/issue 26 urgent password bug
Updated version number: 1.0.14 => 1.0.15
Merge branch 'release/1.0.15'