Conflicts resolved #948
CourseSubsection editing part1 and Only one course section/subsection can be renamed at a time
Merge branch 'mongokit' of https://github.com/gnowledge/gstudio into Courses
Renaming Course subsections that can have same name under different Course Sections
Merge branch 'mongokit' of https://github.com/gnowledge/gstudio into mongokit

Merge branch 'mongokit' of https://github.com/gnowledge/gstudio into mongokit
Print statements removed
Reordering course sections/subsections bug fixed
Conflicts resolved with #955
Conflicts resolved #955
Buttons in Drawer widget of MIS  Batch providing MOVE ALL option and Labels display count of left and right drawer
Batch Filtering with Announced Courses
Merge pull request #956 from katkamrachana/mongokit

Changes in Course Structure and Batches