Fixed issue with not loading default image in Firefox in study page
Fixed logo center issue in email.
Merge remote-tracking branch 'upstream/release-6.2' into release-6.2
Merge remote-tracking branch 'upstream/release-6.2' into release-6.2
Merge remote-tracking branch 'upstream/release-6.2' into release-6.2
Merge remote-tracking branch 'upstream/release-6.2' into release-6.2

* upstream/release-6.2:
  Language objective and Teacher Tip Save issues Resolved
hided standard tooltip on onblur
Merge branch 'release-6.2' of https://github.com/Gooru/Gooru-Web into release-6.2
Merge pull request #131 from suryanarayanakb/release-6.2

standards FE handled
Merge branch 'release-6.2' of https://github.com/Gooru/Gooru-Web into release-6.2
In FF version 30 for TEKS standards the banner images are broken issue resolved.
Merge remote-tracking branch 'upstream/release-6.2' into release-6.2
Merge pull request #132 from mitraj/release-6.2

In FF version 30 for TEKS standards the banner images are broken issue r...
Merge remote-tracking branch 'upstream/release-6.2' into release-6.2
folder meta data info character validation done upto 600 characters
Merge remote-tracking branch 'upstream/release-6.2' into release-6.2
player is grayed out and can't perform any action issue resolved
Message updated.
implemented delete standards taxonomy
Merge branch 'release-6.2' of https://github.com/Gooru/Gooru-Web into release-6.2