[ui] No confirmation dialog when there are changes on tab and user clicks Deploy button

[Julia Aranovich]

Steps to reproduce:

1. create default env, add some nodes, go to Settings tab, change smth
2. click Deploy Changes button

Expected behaviour: there should be pop-up about unsaved changes on the tab.
Actual result: no popup, unsaved changes are not reset, deployment can be started, the tab is locked with unsaved data.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/154864

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/154864
Committed: https://git.openstack.org/cgit/stackforge/fuel-web/commit/?id=d6c6ec06dd530248cc0399b2c2bec9bc60919d02
Submitter: Jenkins
Branch: master

commit d6c6ec06dd530248cc0399b2c2bec9bc60919d02
Author: Kate Pimenova <email address hidden>
Date: Wed Feb 11 16:09:51 2015 +0300

    Confirmation dialog added when there are changes on the screen and user clicks Deploy button

    Closes-Bug:#1415804

    Change-Id: Icafaba734f7e04be234b990ccc0e97acdfa00239

[Anastasia Palkina (apalkina)]

Verified on ISO #126

"build_id": "2015-02-15_22-54-44", "ostf_sha": "f9c37d0876141e1550eb4e703a8e500cd463282f", "build_number": "126", "release_versions": {"2014.2-6.1": {"VERSION": {"build_id": "2015-02-15_22-54-44", "ostf_sha": "f9c37d0876141e1550eb4e703a8e500cd463282f", "build_number": "126", "api": "1.0", "nailgun_sha": "1e3a40dd8a17abe1d38f42da1e0dc1a6d4572666", "production": "docker", "python-fuelclient_sha": "61431ed16fc00039a269424bdbaa410277eff609", "astute_sha": "1f87a9b9a47de7498b4061d15a8c7fb9435709d5", "feature_groups": ["mirantis"], "release": "6.1", "fuelmain_sha": "2054229e275d08898b5d079a6625ffcc79ae23b8", "fuellib_sha": "7f8d4382abfcd4338964182ebfea1d539f963e66"}}}, "auth_required": true, "api": "1.0", "nailgun_sha": "1e3a40dd8a17abe1d38f42da1e0dc1a6d4572666", "production": "docker", "python-fuelclient_sha": "61431ed16fc00039a269424bdbaa410277eff609", "astute_sha": "1f87a9b9a47de7498b4061d15a8c7fb9435709d5", "feature_groups": ["mirantis"], "release": "6.1", "fuelmain_sha": "2054229e275d08898b5d079a6625ffcc79ae23b8", "fuellib_sha": "7f8d4382abfcd4338964182ebfea1d539f963e66"