Added a restart button in case restarless update/removal fails
tmp folders delete much better
Left over tmp folders now removed on restart
A few bug fixes

* Correcting a bug that prevents some contribs from auto-update on restart
* Mode installed during auto-update on restart now displays in mode menu
Update on next restart if net isnt available during auto-update on restart

And some Spring Cleaning

* Changed for-each to iterator
* Removed a few redundant functions
Done revamping Contribution Manager

Lots of Bug Squashin'

* Fixed the bug that appeared when trying to remove the present mode
* Minor bug fix in working of Lib Manager
* Minor GUI Changes
* Solves ConcurModifExcept that randomly pops up
* Fix bug that appears when multiple modes are to be updated on restart
* Fixed bug affecting failedupdate for modes
* Solved bug that involved auto-update on startup
* Removed pointless commented out code