basic function support for 'opening'

other misc changes include:
1 add 'better-errors' and 'meta-request' to facilitate rails debugging

Signed-off-by: Henry Chen <hchen@vmware.com>
Merge branch 'master' of github.com:vmw-tmpst/heroapp-LetsHire into JobDraft

Conflicts:
	Gemfile
	Gemfile.lock
	db/schema.rb

Signed-off-by: Henry Chen <hchen@vmware.com>
code refine based on comments for previous check.

Signed-off-by: Henry Chen <hchen@vmware.com>
Merge pull request #11 from Henry-CF/JobDraft

basic function to support Job Description