Revert "Revert "Turn DropClientMsg into a SyncMessage because it will call back into the VM""

This reverts commit 31b057479b015322605161b6f41cfaf5371a7c37.
Revert "Stop using entityState_t.solid for transmitting bboxes over the"

This reverts commit 615c3c3c6e7aa6d6c71085015a48675b7e21ff4c.
Revert "Fix 615c3c3."

This reverts commit 1e1171bf0377e1a8522056d982824be6cb6dd410.
Remove CVAR_ARCHIVE cgame variables
Load the map when playing a demo
Add support for the "colorGrade" world spawn key
Fixes #473
Figured out the difference between SERVERINFO and SYSTEMINFO
Remove some redundancy and reorder SV_DropClient
Remove arg of BotAllocateClient and introduce SV_IsBot
Remove unused declaration and vars
Fix a copy paste error
Fix download-pk3.sh for BSD md5sum
Fix last download-pk3.sh patch for  with a space
Remove SDL1 support
Fix UI lags
Merge remote-tracking branch 'origin/remove_sdl1_support'
Version bump to Alpha 34
Remove warning for when I->oav is NaN

We now know that this is indeed the cause and that all components are NaN at
the same time. We'll leave the hack in place until a long term fix is found.
Update travis to use SDL2
Revert "Merge remote-tracking branch 'origin/remove_sdl1_support'"

This reverts commit ffcef6164c079949a7c65674374ec340079d0e01, reversing
changes made to f96c02cf3cf35cc5a5a54eb84cb5efaed8c0f4c6.