Replace faye-websocket with websocket-driver.
Migrate to websocket-driver 0.2.0, which handles HTTP parsing for us.
We no longer need http/parser
Fix process spawn pgroup error on Windows
Update changelog to note pgroup error fix
Merge pull request #329 from Ajedi32/fix_windows_pgroup_error

Fix process spawn pgroup error on Windows
Merge pull request #322 from jcoglan/websocket-driver

Replace faye-websocket with websocket-driver.
Revert “Remove multi_json dependency”

Fix issue #327 (Consider using MultiJson again)
Reverts: a62b9f001acb51da5f0a1a96608e4555975a265a
Merge pull request #328 from kyrylo/327-multi-json

Revert “Remove multi_json dependency”
Fix NoMethodError when using has_css with count on svg elements