Add :publicly_available to Templates

Now Templates can be public or non-public.  This exposes the public flag on
images from cloud providers.

For Openstack, this information is available on the detailed image information
retrieved from the Openstack Glance API.

For Amazon, to avoid making an additional EC2 API call per image, the
:publicly_available information is derived from how the images are gathered by
the EC2 Parser.  For instance, get_private_images sets :publicly_available =
false, and get_public_images sets :publicly_available = true.
Fixed access to report schedules related tasks for non-admin user.

Fixed code so non-admin users are able to perform schedules related tasks in Reports explorer.
- Changed MiqSchedule related buttons ids under Reports explorer to be unique, there were duplicate ids in product features yaml as schedules can be managed thru OPS explorer as well. Each feature in product features needs to have a unique id.
- Changed any existing assert_priviliges check and other related code in reports explorer to set/check for updated button ids
- Fixed any broken spec tests by these changes

https://bugzilla.redhat.com/show_bug.cgi?id=1118726
https://bugzilla.redhat.com/show_bug.cgi?id=1142447
Addressed rubocop comments.

https://bugzilla.redhat.com/show_bug.cgi?id=1118726
https://bugzilla.redhat.com/show_bug.cgi?id=1142447
Fixed count of feature ids in spec test.

Test broke after another PR was merged that added a feature to product features yml.

https://bugzilla.redhat.com/show_bug.cgi?id=1118726
https://bugzilla.redhat.com/show_bug.cgi?id=1142447
Addressed issues found in PR testing.

Added schedule view feature so user can see Schedules accordion even when they are not allowed to modify schedules records.

https://bugzilla.redhat.com/show_bug.cgi?id=1118726
https://bugzilla.redhat.com/show_bug.cgi?id=1142447
Addressed rubocop issues with case indentation.

https://bugzilla.redhat.com/show_bug.cgi?id=1118726
https://bugzilla.redhat.com/show_bug.cgi?id=1142447
Fixed refactored code to set date and time variable based on params that came in.

Changed to set date variable from exp[exp_value_key][exp_value_index] only when params_time_key came in.

https://bugzilla.redhat.com/show_bug.cgi?id=1142711
Merge pull request #659 from h-kataria/fixed_refactored_exp_editor_date_selector

Fixed refactored code to set date and time variable based on params that...
Merge pull request #651 from blomquisg/publicly-available-images

Add :publicly_available to Templates
Added a check for the existence of the request object

create_request returns false if validations fail or it returns
the request object itself.
Therefore when validations fail, the value of request is false
which causes the crash.

https://bugzilla.redhat.com/show_bug.cgi?id=1095457
https://bugzilla.redhat.com/show_bug.cgi?id=1138397
Merge pull request #623 from h-kataria/fixed_report_schedules_feature_ids

Fixed access to report schedules related tasks for non-admin user.
Merge pull request #661 from AparnaKarve/bz1095457_create_catalog_item

Fixed crash when validations fail while creating a catalog item
Revert commit of 00cb48ca248d6ba15e531cadd2b6a0e0604d1ebf
Added methods for adding/updating URL query string parameters

Method specific to paging - update_paging_url_parms
Method specific to buttons/toolbars - update_url_parms

This commit depends on the revert-commit of 00cb48c

https://bugzilla.redhat.com/show_bug.cgi?id=1142702