Do not clean up frameworks on generators environment, otherwise initializers, gems and plugins might not be loaded properly.

Make it so AR attributes which conflict with object-private methods (e.g. system) don't 'randomly' cause NoMethodErrors

Previously if you called this attribute before others, you'd get exceptions.  But if it was the second-or-subsequent attribute you retrieved you'd get the correct behaviour.
Signed-off-by: NMichael Koziarski <michael@koziarski.com>
[#2808 state:committed]

Signed-off-by: NYehuda Katz <wycats@gmail.com>

Ruby 1.9 style String interpolation support for lower ruby versions. Thanks to code from Masao Mutoh's GetText gem. [#2870 state:resolved]
Signed-off-by: NYehuda Katz <wycats@yehuda-katzs-macbookpro41.local>

Add support for dumping non-standard primary keys when using the SQLite3 adapter. Fix unit tests so that this feature is tested for all adapters. [#2868 state:resolved]
Signed-off-by: NYehuda Katz <wycats@yehuda-katzs-macbookpro41.local>

Adds a audio_tag helper for the HTML5 audio tag. Fixed video_path docs. HTML attributes values should be true or false not attribute's name. [#2864 state:resolved]
Signed-off-by: NYehuda Katz <wycats@yehuda-katzs-macbookpro41.local>

  Reapplies: a4bdc00f
             3c1dab72