Rest API: fix "limit" and "offset" functionality

This is to fix the followig errors:
1. When using 'limit' argument:

    String can't be coerced into Fixnum, klass:TypeError

2. When using 'limit' with the 'offset' argument:

    undefined method `-' for ...:String, klass:NoMethodError
Fixed rendering issues after the upload of Sysprep Answer File

Clicking on Upload resulted in many Provisioning dialog rendering issues such as -
1. Form buttons (submit/cancel) were not showing up effectively inhibiting provisioning
2. Layout abruptly switched from explorer to non-explorer

Other than the above rendering issues, also fixed a routing error and a
crash that was originally reported in the BZ.

https://bugzilla.redhat.com/show_bug.cgi?id=1154054
Added gettext calls into availability_zone view
Added gettext calls into alerts view
Added gettext calls into chargeback view
Added gettext calls into cloud_tenant view
Added gettext calls into host view
Added gettext calls into support view
add the verb to the match call

calling `match` without a verb won't work in Rails 4+
Added gettext calls into storage_manager view
Added gettext calls into storage view
Added gettext calls into security group view
Added gettext calls into resource_pool view
Added gettext calls into repository view
Rewritten generic_mailer view to HAML + added gettext calls
Remove importing of conditions from the product/conditions directory.

It's not currently in use since all the yaml files are disabled.

YAMLImportExportMixin is responsible for importing conditions and only calls
Condition#export_to_array or Condition#import_from_hash.

All of the other stuff is unused.
Fixed breadcrumb link for "Services" in Host Summary screen

Ensured that the explorer action gets called for the Services breadcrumb
link.

https://bugzilla.redhat.com/show_bug.cgi?id=1148636
sync_from_file is now unused.
These were only used by the now deleted product/conditions yamls.
from_file is now unused, delete it.