Fixed release date in release notes
Work on the website
fixed download links
update download page for Arch Linux
Fixes #51: webpage.render() should create directories

If directories in the given path do not exist, they should be
created, like PhantomJS does.
Bumped version to 0.8.1pre
Some changes on the website...
Bumped version to 0.9pre
new release notes for 0.9
Merge branch 'v0.8'

Conflicts:
	docs/release-notes.rst
	src/application.ini
Fixed tests about version number
Closes #55: move some slutils functions into the slUtils object
fix typo
fix typo
Link to GH Fork action fixed
Link to GH Fork action fixed
fixed doc title in release notes
website: fixed links to nightlies
env parameter should be rounded by double-quotation
added quotes to 'if not exist "%SLIMERJSLAUNCHER%"' variable (3x)