Related-Bug: #1390392

Added ability to specify a custom function for checking menu access (accessFn)

Change-Id: Iafecfa12963562692b0256df1389f326c58c0607

Change-Id: Iacad7a1066c5984fedd80288425256548e2b54a0
Extended style for input elements inside contrailWizard

Change-Id: I775640145a5776f7826f1b4f1a1e2b8b5164da52
1. Adding missing handler getToken in case of no-orch
2. In case of multi_tenancy is disabled, if we get authentication error from API
Server, then do not redirect to logout, in stead pass the error object to
handler, redirect to logout only if multi_tenancy is enabled and we get
authentication error.

Change-Id: Idb51b45fb4d5697129a645706c588c3538dca9de
Merge "Related-Bug: #1390392"
Merge "Extended style for input elements inside contrailWizard"
Merge pull request #54 from Juniper/master

Pull changes from Juniper/web-core to absingla/web-core