Swicth to https links to Drupal.org.

Also changed links to Drush (now on Github) and Coder Sniffer (now part
of coder.module).
Added a simple `drupal-tail-drupal-debug-txt` function.

Fixes #20.
Added function to wrap string in t().

Bound to `C-c C-v C-t`.

Fixes #15.
Bumped version number to 0.3.0.
Merge branch 'release/0.3.0' into develop
Fixed `drupal-search-documentation` for PHP keywords.
Bumped versio to 0.3.1.
Merge branch 'release/0.3.1' into develop