Merge pull request #55 from srikanthvenna/master

Added js folder, css modifications and look and feel.xml changes
Added feature: Deleting workshift and all the employees shiftId in the
deleted workshift changed to 0.
changed showRequiredLabel = false
Merge pull request #56 from laxminarayanav/master

Delete function for Workshift
Theme changes:
table css
sign in button