[r175]offline.appcache should use forward slashes (/)

Problem Description

The offline.appcache generated by Construct display relative subpath using backwslashes (\)

like:

images\sprite-sheet0.png
media\bgmusic.m4a
media\bgmusic.ogg
[/code:pesnfix5]
This breaks the caching on some linux based servers which require forward slashes when using Firefox.
    
[b]Affected Browsers[/b]
[ul]
    [li] Chrome: (NO)
    [/li][li] FireFox: (YES)
    [/li][li] Internet Explorer: (NOT TESTED)[/li][/ul]
    
[b]Operating System and Service Pack[/b]
Tested on window, linux and mac
    
[b]Construct 2 Version ID[/b]
r175

Really? I thought servers would be tolerant of either slash. Anyway forward-slash is more usual for the web, so I've updated it for the next build. Hopefully that will work better.

Yeah so do I, it might be some shaddy configuration switch like "tolerate windows back slash" or something

But yeah, forward should be used anyway.

Thanks (: