enter on chat textinput results in send
fix debug output a tad bit for some things..like GL_KHR_debug

fix warning for assignment in server poll, save ret value in case we need
it later
reinstate the gl context format specifiers..it was just giving us a

good context by chance, i think. i never specified which i wanted because
it broke, but now i know why and also i know why 3.1/2/3 doesn't work
(hint: glew is getting replaced).

add some env vars to launcher, helpful ones (disabled for now)
depend on libepoxy to get gl function pointers. replace glew

AND IT WORKS!! yay.

stuck at 3.0 for now, qt's doing something behind my back somewhere
and mesa is pumping out errors like nobody's business
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