removed chck for ARB_vertex_buffer_object as it has become part of opengl spec in version 1.5 and is not listed as extension by some drivers (e.g. all apple drivers)

do not use generate mipmaps as texture parameter in core profile
call glGenerateMipMaps instead

 setting in  CoreWidget, which still userd compatibility profile even when core profile was set via cmdline

also fixed shaderprogram 0 assertion from QOpenGL branch in coordsys
node

specifically:
 initialized glstate properly
 moved various compatibility calls to if branches
 use previous VAO properly in ACG
still to go for the nodes

Fix the warning about changing defaultFormat at startup of openflipper

See merge request !39

this probably breaks compatibility to undocumented writings like
--b --batch /batch etc.

initialize settings before parsing command line options.
prevent double initialization.

fixNameClash

See merge request !40

name does not matter

afterwards to prevent setting the default SurfaceFormat multiple times

this prevents a segfault on windows. But it is only a workaround, as the
function should already be initialized at this point, but it is not

updated developer documentation required libs qt version as it stated we

See merge request !37

would still support qt 4.8 which we definitely do not

added changes from QOpenGL branch to enable and use GLDebugLogger when

See merge request !35

fixed #3 by moving the call to make current to the top of snapshot

See merge request !36

function to prevent the push calls being made without a valid context or
a different context than the pop calls.

OpenFlipper is started with the -d parameter

Fix snapshot

Closes #2

See merge request !33

add a CMake finder for libigl

See merge request !34

QOpenGLWidget.

fixes #2

calls during initialization of the Widget, or at least avoid a segfault
when calling opengl functions in makeCurrent

don't run ctest in dashboard mode anymore for easier location of log

See merge request !32