Introduce a WindowProxy for accessing a subset of functionality
from other threads. This currently provides a way for other threads
to wakeup a blocked event loop on X11. Other platforms have stub
functions that need to be implemented. This is similar to
the functionality of glfwPostEmptyEvent.
Use "winapi" from crates.io
Merge pull request #162 from tomaka/winapi-loc

Use "winapi" from crates.io
Update for rustc for x11
Merge pull request #163 from tomaka/update-rustc

Update for rustc for x11
Add automatic gh-pages deployment in travis
Fix travis secure token
Add links to documentation
Fix event name
Add mac implementation of wakeup_event_loop.
Add scroll wheel events for mac.
Merge pull request #164 from glennw/scroll-wheel

Add scroll wheel events for mac.
Change todo to unimplemented
Merge pull request #161 from glennw/thread-proxy

Introduce a WindowProxy for accessing a subset of functionality