added rc related models, rc list value to active admin
added validation in root cause model
Merge branch 'master' into root_cause
added rc_completed to escalation report for custom reports
added create/update for rc
more code for create/update rc
SDPIII-55, added vestal version to root cause model, erring unit to root cause form
SDPIII-55, added jquery validation for rc add/edit form, updated old spec
SDPIII-55, updated ability for not able to reopen the ticket once rc is completed for a ticket, spec for it
SDPIII-55, changed code to model methods, added a datepicker to date
field
added root_causes controller specs
added model specs for rclistvalue and root_cause
Merge branch 'master' into root_cause

Conflicts:
	app/helpers/tickets_helper.rb
SDPIII-55, updated the ticket model spec for relationship check
Merge branch 'master' into root_cause
SDPIII-55, added rc_completed to solr
SDPIII-55, added condition in views
changes to directly insert in table for cib task
Exclude download activity from history tab
testing existing method for etl_fi_advices_dsbrsmnt