OSMesa: Cleanup

Fixes formatting, semantics and documentation.  Adds
glfwGetOSMesaContext.  Adds support for OSMesa context attributes.
Updates changelog and credits.  Adds license and copyright headers.
Removes superfluous code (the shared code provides many conveniences).
Removes loading of unused OSMesa functions.  Removes empty platform
structs.  Fixes version string format.  Removes build dependency on
the OSMesa header and library (only the library is needed and only at
runtime).

Closes #850.
This commit is contained in:
Camilla Berglund
2016-10-13 17:24:51 +02:00
parent 368fa9475d
commit fef21361c5
14 changed files with 611 additions and 350 deletions