v0.3.0: Send cursor position to browser

From now on, we set the browser's cursor position according to where the
cursor is in neovim. Though, the opposite — setting neovim's cursor to
the same position as that in the browser — hasn't been implemented yet.

v0.2.7: BUGFIX

Polling is essential in how simple_websocket_server works. I had tried to remove it, causing the whole plugin to stop working. This release fixes that bug.

v0.2.6: Major update

- Consolidated logging by creating a log() function
- Fixed handling of $NVIM_GHOST_LOGGING_ENABLED
- Fixed bugs caused by the switch from threading to multiprocessing

v0.2.5: Improve binary

- Use processes instead of threads (bypasses python's GIL)
- Make /exit cleanly exit the server

v0.2.4

[BUGFIX] is_running() causes Broken Pipe exception

v0.2.3: BUGFIX

- Kill the running binary before installing a new one
- Don't request focus if we've spawned the server
- Fix nvim_ghost#helper#is_running()

v0.2.2

Bump version to build with latest release of pyinstaller instead of
using the latest git HEAD of pyinstaller

v0.2.1: Improve plugin startup time

Instead of running nvim-ghost-binary --version (which takes a long time)
to get the version of the installed binary, we distribute a .version
file along with the binary, and read from that.

v0.2.0: Major update

- Install binary automatically

- Allow running multiple servers on multiple ports
  (Useful in case of multi-user systems)

- Improve install scripts

v0.1.4

Dependencies updated.