allows most of file types with non lowercase extension
known issue: textures with non lowercase extension in loose folders are visible now, but they aren't loaded, because it leads to fopen( filename.lowercase_extension )
* -brightness 0..alot, def 1: mimics q3map_lightmapBrightness, but globally + affects vertexlight
* -contrast -255..255, def 0: lighting contrast
* packer improvements
Radiant:
binds...
* entity inspector: Tab enters Key field, toggles between key/value fields; Del deletes keys; Esc quits
misc...
* improved mwheel 2d zoom by Neumond
* +makeRoom: like hollow, but extrudes faces outwards; for making rooms
* deactivating tex dirs tree after loading dir, so SPACE and ENTER aren't broken for 2D after that
* Regular, RegularLeft layouts: smaller console, bigger tex browser
* Rotate, Scale dialogs: values aren't erased on Enter, OK, Apply (are on cancel, esc)
* Rotate dialog: fix: new value in focused field wasn't taking in account on Enter
* +updating texture directories list on 'flush and reload shaders' (reloading shaderlist aswell)
* NumLock perspective window fix
* ctrl+k(ConnectEntities): friendlier to complex connections, takes in account existing keys
(priority: target > targetname > none)
* +'all Supported formats' default option in open dialogs
* defaulted show light radii
* camera fov: 90->110
* cubic clip: off by default; bigger def dist; fixed button's shortcut tip
* prefs: Min & Max texture thumbnail size + dependant on scale;
def = *scale .5, min 48, max 160 (makes range 96-320 visually differentiated)
