Added: support for two options of wkhtmlimage that were missing (use-xserver and enable-smart-width)
Added: support for two options of wkhtmltoimage that were missing (use-xserver and enable-smart-width)
Merge branch 'master' of github.com:0livier/snappy
Merge pull request #55 from 0livier/master

Added support for two wkhtmltoimage options that were missing