User-visible Changes:
=====================
* Added speedbar integration, type [F11] to toogle speedbar
* Fixed #9880: the hotkey "C-c ." conflicted with ECB, changed to "C-c C-c ,"
* New hotkeys, to easy switch without a popup menu between a
controller or a model related files
In model layout:
- "C-c m" go to model
- "C-c u" go to unit test
- "C-c g" go to migration
- "C-c c" go to controller
- "C-c x" go to fixture
- "C-c n" go to mailer
In controller layout:
- "C-c g" go to migration
- "C-c m" go to model
- "C-c h" go to helper
- "C-c f" go to functional test
- "C-c c" go to controller
- "C-c u" go to unit test
* Fixed bug #9783 (remove-postfix: Wrong type argument: arrayp, nil)
* Updated the compilation output, for better highlight of error and warnings
* Added the flymake support to on the fly syntax checked in the ruby-mode