Merge pull request #408 from nabinhait/hotfix

Null issue fixed while value comparison
bumped to version 3.7.4
Merge branch 'develop'
check box disabled when read permission
Merge pull request #409 from akhileshdarjee/hotfix

Check box disabled when read permission
enable checkbox when write permission
Merge pull request #411 from akhileshdarjee/hotfix

enable checkbox when write permission
bumped to version 3.7.5
Merge branch 'develop'
show last visited page afer login for customer login, if came from email link
Merge branch 'develop' of github.com:webnotes/wnframework into hotfix