Trim Functionality on Nurture Track

Implemented Trim Functionality on Nuture Track
Merge branch 'abdullah_2.7' into umair_
changes in contacts

changes in campaign summary for nurture track
Merge branch 'awakeel_4.0' into umair_
fixes in nurture track
bugs fixing

bug fixing
Merge branch 'awakeel_4.1' into umair_
upload image fix for template