removing hard-coded browser
Merge pull request #61 from nicola/hardcoded-browsers

Removing hard-coded browser fix #56
install firefoxos simulator when not installed, fix #55
Merge pull request #62 from nicola/install-firefoxos

install firefoxos simulator when not installed, fix #55
some copy changes
more firefox OS separation
Merge pull request #64 from sole/master

A few copy writing changes
more copy
added contributing section
check if the path is a directory before listing its contents - fix for #65 and #66
Merge pull request #69 from sole/master

Checking if extension folder exists, fix #65 and #66