update to xulrunner 6.0.2 - closes #137 - closes #145

update urls and md5s for xulrunner 6.0.2 for linux 32 & 64 bit

update urls and checksums for windows - port to xulrunner 6.0.2

port OSX to xulrunner 6.0.2. only change required was the way we populate browserCodePath in app-paths.js, suspected due to different evaluation order under xulrunner 6

add Jonathan Watt to the credits page.

look for index.xhtml or index.svg if index.html doesn't exist. closes #134 (thanks Jonathan Watt!)

bump to latest webian in the gallery

Merge pull request #129 from davidmurdoch/alertsAreLame

add a simple test of the bug where nested iframes are affecting window title

Alleviate an annoyance caused by bug #91 by defaulting to use error pages instead of alerts.

fixed fs.listObjects. closes #127

fix undefined variable in fs.copy(). closeds #125

allow application code to emit events into web code. closes #123

default window title to application name, and update it each time the app code updates document title. closes #81. closes #119.

Merge @davidmurdoch's fixes: Adjust content policy to not block navigation for chrome windows, which fixes alert() and friends. closes #120. closes #121.