Merge pull request #53 from bvssvni/master

Changed to 150 core
Merge pull request #55 from bvssvni/master

Picking shader by OpenGL version
Remove Rust-empty
Merge pull request #57 from Indiv0/remove-rust-empty

Remove Rust-empty
Add IRC Notifications
Merge pull request #58 from Indiv0/add-irc-notifications

Add IRC Notifications
Added notice that OpenGL functions

Closes https://github.com/PistonDevelopers/opengl_graphics/issues/51
Updated the dependencies link
Merge pull request #60 from Coeuvre/master

Updated the dependencies link
Fixed error message

Closes https://github.com/PistonDevelopers/opengl_graphics/issues/64