Merge pull request #122 from dekpient/master

Little things :)
Merge pull request #136 from dekpient/master

Merge replace-media branch https://github.com/AUTUpStageTeam/UpStage2013/issues/47
Merge pull request #137 from dekpient/master

Fix redirection on error page
Completed issue #93

"Filter by tags" is now a thing.
Filter by user list now contains every uploader
Nikos was also here
Issue #94

Search by strings are now possible
Validate user information and change confirmation message
Make sure everything is loaded before server receives LOADED message
Merge remote-tracking branch 'upstream/master'