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As the new glLoad is not compatible with Qt 5.6 we will continue using
glew for now.

This reverts commit 22938119ac1bcf60ad49078c7fa436856bc7c902, reversing
changes made to ed8a9a65a94b8d72b80133d37ddbf4a8c029988a.

Private update



See merge request !85

Only type plugins and the core will access the update function

specification of additional libraries for each plugin to be linked into the core.

also update logo in user documentation sources



See merge request !83

fixes #32 by applying the patch provided by a dielen.

ps: i am still missing around 700 mb mrmory from the provided information, but this is better than before

See merge request !69

New gl loader

on this branch glew was replaced by glLoadgen
Even though the build runs on all platforms, excessive testing should be performed (old opengl cards new ones, runtime tests etc.)
closes #20 

@moebius you probably want to check for code Quality before merging this one.

See merge request !66

Removed FreeFont stuff



See merge request !73

meminfo should be as accurate as around 100mb

ps: i am still missing around 700 mb mrmory from the provided information, but this is better than before

* hopefully everything should be ready to be merged now

refactorAlignMeshes

DONE: change icons of the new buttons and remove redundant functionality from align meshes plugin
also added an icon for align meshes.

ready to be merged
merry Christmas!

See merge request !49

* added icon for mesh alignment (Magnet icon cc0 graphic from https://pixabay.com/en/magnet-horse-shoe-poles-north-312777/

* changed scale icons since i found the svg file ;)

closes #24