seems that somehow not having this is causing keyboard events to be caught by
SDL. This was removed because it broke addons that could use SDL, now set the
environment variable only temporary during SDL initialization.
This may have been causing issues with keyboard events getting missed in the
game engine, but I couldn't confirm the issue here.
- pass string size to BLI_timestr() to avoid possible buffer overrun.
- quiet warning for mingw.
- include guards for windows utf conversion funcs.
- fix for mistage in edge-angle-selection check.
- some style cleanup.
Not all file formats/calls are supported yet. It will be expended.
Please from now on use BLI_fopen, BLI_* for file manipulations.
For non-windows systems BLI_fopen just calls fopen.
For Windows, the utf-8 string is translated to utf-16 string in order to call UTF version of the function.
