Merge pull request #11 from pglibay/master

Fixed Grade Computation-php
Merge pull request #12 from pglibay/master

Fixed grades-update php, fixed compute-grade js
Merge pull request #13 from pglibay/master

Added isChanged flag
Merge pull request #14 from pglibay/master

Changed user account filter on main navigation for accounting
Merge pull request #15 from pglibay/master

Fixed, student search on registration
Merge pull request #16 from pglibay/master

Updated Registration, Fixed Grades
Merge pull request #17 from pglibay/master

Fixed Grades, Updated Registration
Merge pull request #18 from pglibay/master

Removed some lines
Merge pull request #19 from pglibay/master

Fixed, Grades/Registration
Merge pull request #20 from pglibay/master

Fixed, Registration link to gradesheet
Merge pull request #21 from pglibay/master

Fixed, Registration link to Gradesheets
Fix and Updates