upgrade foreman to rails 3.2.13

This commit updates from rails 3.0.x to 3.2.x, main changes include:

• Asset pipline support
• cleanup of existing assets (javascript, css, images)

Users who uses foreman in production, make sure that you now compile
your assets, e.g...

fixes #2250 API v2 add/remove puppetclasses from hosts and hostgroups

fixes #2324 Refactoring of Host STI

Allows plugins to render a different STI-type edit form and save
the changed type. Also allows the /fact_values upload to specify
a type. Adds tests for the STI type changes.

Add localization calls to the subnets and the trenda pages.

There are other changes to the common layouts based on simple testing.

Use proper syntax for step 2 title, comment by Joseph Magen

Added gettext calls to the usergroups and roles pages.

Note, this patch does not include an update to the strings file. This will allow patches to be submitted without colliding with each other.
To regenerate the strings file, run rake gettext:find.

Add gettext calls to the common views, application controller, and application helper objects.

Note, this patch does not include an update to the strings file. This will allow patches to be submitted without colliding with each other.
To regenerate the strings file, run rake gettext:find

Add gettext calls to the locations pages and the user pages.

These pages provide examples for using single translations:

_("Here is a simple")

single substitutions:

_("I like %s") % "pie"

and complex ones:

_("%{character"} should %{action}") % {:character => "Jar Jar Binks", :action => "be erased"}

fixes #2277 - adds spice html5 support

This also adds a newer version of the web socket proxy (where we
probably need to use an external package instead of vendor it).

we still allow users to use the old XPI based spice client (which would
ensure end to end security as well) via a 'new window' button....

fixes #2269 - Add gettext framework to foreman.

This patch adds a gettext based localization framework to the Foreman. This is done by adding the fast_gettext and gettext_i18n_rails gems along with their depdencies. An example translation is done to the login page and the users controller....