Merge pull request glium#2082 from est31/master

Release 0.33.0

Merge pull request glium#1976 from est31/release_0_31

Release 0.31.0

Merge pull request glium#1942 from est31/release_0_30

Release 0.30.0

Merge pull request glium#1736 from est31/master

Update dependencies, unbreak examples

Merge pull request glium#1715 from mitchmindtree/update_glutin

Update glutin dependency to 0.19.

Publish 0.13.5

Publish 0.13.4

Publish 0.13.2

Merge pull request glium#1372 from tomaka/raw_read_to_pixel_buffer-li…

…beral

`raw_read_to_pixel_buffer` now accepts all pixel types

Publish 0.13.0