Handling Link/Path information from hash URL
Handling Link/Path information from hash URL

When user selects a link or maps/traces a flow, move to different page,
come back again by pressing browser's back button, the earlier context
is supposed to be retained, which was not happening.
This fix is to handle these cases.

UT Results:

make test-env REPO=webController;
LOG: 'Completed; Starting Coverage.'
PhantomJS 1.9.8 (Mac OS X 0.0.0): Executed 537 of 537 SUCCESS (6 mins 0.203 secs / 5 mins 41.927 secs)

Done, without errors.

make prod-env REPO=webController;
LOG: 'Completed; Starting Coverage.'
PhantomJS 1.9.8 (Mac OS X 0.0.0): Executed 537 of 537 SUCCESS (4 mins 23.29 secs / 4 mins 3.893 secs)

Done, without errors.

Change-Id: I345b7ac91895f28247c0b637c19de9753a8dd69f
Partial-Bug: #1626407

vishnuvv/contrail-web-core,biswajit-mandal/contrail-web-core,biswajit-mandal/contrail-web-core,nagakiran/contrail-web-core,nagakiran/contrail-web-core,nagakiran/contrail-web-core,biswajit-mandal/contrail-web-core,vishnuvv/contrail-web-core,vishnuvv/contrail-web-core