Release of SlimerJS 0.9.1
Fixed release notes
Update feature.html

Minor tweaks to language.
XULRunner needs a few more dependencies.
Improve documentation of require() phantomjs differences.
Add npm package install docs Fixes #64
Bump version to 0.9.2pre
Website: update download links
Gecko 30: Disable our ConsoleApi component

It causes some incompatibility. The original component has been rewritten in C++
https://bugzilla.mozilla.org/show_bug.cgi?id=965860
Fixes tests about version number
Gecko 30: support of column number in error stack
Compatibility with Gecko 30 and 31b1
Packages contains now XulRunner 30
Website: Update Download page with Docker image
Improve documentation about boolean options

Refs #186
Merge branch 'v0.9'

Conflicts:
	docs/conf.py
	src/application.ini
	test/initial-tests.js
	test/test-environment.js
	website/download.html