Cleaned up the Views.
1) Removed the add button comes next to dropt down for all the belongs_to and has_many assosiations.
2) Re-ordereted / Grouped the the Navigation Menu.
3) Added validations.
Added Pincode. Center can have many pincodes.
Changed for adding pincode
Changed to ignore IDE files and Ruby Version
Merge branch 'master' of https://github.com/bishups/pcc-main

Conflicts:
	app/models/sector.rb
	db/schema.rb