update julia version to 0.3.2

also includes:
- fixes to image building script
- rearrangement of admin screen
Merge pull request #128 from tanmaykm/tanmaykm

update julia version to 0.3.2
temporary fix for ijulia syntax highlighting
Merge pull request #129 from tanmaykm/tanmaykm

temporary fix for ijulia syntax highlighting
fix google drive sync bug. refactor code

Fixed bug where sub folders of a google drive folder may not get synchronized properly. It was possible for them to get treated as files during sync due to an uninitialized variable. May be the reason for error reported in #78.
Merge pull request #130 from tanmaykm/tanmaykm

fix google drive sync bug. refactor code
Leaner config
Merge remote-tracking branch 'origin/codebox'
Various fixes and tweaks