removed unwanted lines.

removed unwanted lines.
Merge pull request #18 from chandrasekharv/release-6.2

Updated message properties with the changes to "edit meta data label"- Resolved conflicts
Comments added for Ratings in server package.
NGSS standards preferences implemented in the user settings page
resolved conflicts
Merge pull request #19 from VinRudramurthy/release-6.1.5

Comments added for Ratings in server package.
Merge pull request #20 from nutan-gooru/release-6.2

Release 6.2
Hiding TEKS standards library for logged out users implemented