Fixes #6394: Manifest refresh use proxy.
fixes #6573 - foretello should error when sorting by non-sortable field, BZ 1110431
Fixes #6097,bz1120427 - repository.feed -> repository.url

Migrating a repository data model attribute from feed to url. The word
feed applies to the feed url used by pulp, but in katello UI, CLI and
API we consistently use url for feed. To mitigate this confusion it was
deemed to rename feed to url.
Fixes #6848,BZ1124547 - Checking content view environments

Checking that a content view is in the environment before trying to remove it
from the environment.
fixes #4989,6734,6735 - adapting sync management page to use dynflow

Note that some columns in the sync management table
have changed to reflect difficulty of fetching some data.
Fixes #6354,bz1112717 - AK available_release perm

Allow acess to available_release if user has permissions to
view_activation_key.
Refs #5429,BZ1102296 - Showing hosts and keys for views
Fixes #6829,6805 - Disable repo remove if published

Added code to disable remove repository button if
1) Repo = RedHat
2) Repo has previously been promoted or published
3) Repo has no delete permissions.
Merge pull request #4480 from daviddavis/temp/20140724111245

Refs #5429,BZ1102296 - Showing hosts and keys for views
Merge pull request #4511 from dustint-rh/ak_releases_perm

Fixes #6354,bz1112717 - AK available_release perm
Merge pull request #4502 from parthaa/repo-remove

Fixes #6829,6805 - Disable repo remove if published
Merge pull request #4507 from daviddavis/temp/20140730151145

Fixes #6848,BZ1124547 - Checking content view environments
fixes #6871 / BZ 1125397 - capsule - add error case for content sync

If the user attempts to sync a lifecyle environment that isn't attached
to the capsule, generate an error to the user.
fixes #6869 - I18n not working w/unsupported languages, BZ 1093433
Merge pull request #4513 from cfouant/internationalization

fixes #6869 - I18n not working w/unsupported languages, BZ 1093433
Merge pull request #4356 from ehelms/fixes-6293

Fixes #6394: Update manifest refresh to use proxy if configured.
fixes #6880 - remove puppet from packages section
fixes #6128 - Fixes errata icons not showing, BZ 902948
Fixes #6892 - Turn on IndentationConsistency cop
Fixes #6894,bz1123473 - rm sys from HC docs

Remove references to system in the host-collection api documentation