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
Add print options to honor viewport width, height as well as margins and resolution
Change currentViewport to options
Website: Update Download page with Docker image
Improve documentation about boolean options

Refs #186
Bumps up gecko version to 30
Merge pull request #195 from net-engine/master

Add options to PDF
Docs about new options for pdf rendering

Refs #195