remove fog deprecation warnings

    Use latest version of the gem

    [fog][DEPRECATION] #connection= is deprecated, pass :service in at creation (lib/fog/openstack/models/compute/server.rb:187:in `block in security_groups')
update RHEL6.4 Gemfile.lock for fog fog
Fixed issues in miq_ae_field_spec

1. Use destroy_all when deleting fields instead of deleting 1 at a time
2. Use ae_fields.clear to remove bad entries from ae_fields
3. When adding same field names add them after the first one has been
validated

These changes were done to make the GIT based model to be in sync with
AR model.
Leverage the newly created ovirt gem
Update VCR casettes to anonymize passwords and ensure correct refresh
Changelog update for Sprint 14

suggestions and guidelines from dev
Grammar updates
Added “Removed” section with link
other edits
add character spaces on heading lines

[skip ci]
Merge pull request #939 from mfeifer/changelog

Changelog update for Sprint 14
Merge pull request #941 from mkanoor/fix_miq_ae_field_spec

Fixed issues in miq_ae_field_spec
EvmDatabase.destroy isn't called anywhere.

This was last touched in 2010.

It references views which we haven't used since this migration killed them:
20110325161234_remove_vim_performance_views
Removed the logic to disable/enable GC before methods

https://bugzilla.redhat.com/show_bug.cgi?id=1138345

GC was being disabled before starting automate methods and
renabled at the end of the method. This causes some methods to
use up all the memory terminating the automate worker

GC disable/enable was added around automate methods because Ruby
would GC the objects that are returned to the method. This was changed
in the past to add a drb_return which would cache the object before
passing it to the method. Since we have a drb_return now for cached
objects we dont need to disable/enable GC anymore.
Merge pull request #974 from jrafanie/remove_unused_evmdatabase_destroy

EvmDatabase.destroy isn't called anywhere.
Merge pull request #684 from brandondunne/extract_rhevm_api_to_ovirt_gem

Leverage the newly created ovirt gem
Merge pull request #973 from mkanoor/bugzilla_1138345

Removed the logic to disable/enable GC around automate methods
Merge pull request #33 from kbrock/gem_fog

remove fog deprecation warnings
Remove 'Non-VM File Space' chart from datastore C&U

https://bugzilla.redhat.com/show_bug.cgi?id=1123516