fix video filename with plus and space

app.js - removing newwindow event listener as it shouldn't be part of
this release.
cache.js - replacing plus char with %20 before decoding
rollback video url encoding change

the issue got fixed on viewer side. Now viewer will fully encode the
video url.
updated manifest to version 1.1.5
Merge pull request #5 from Rise-Vision/bug/video-filename-space

Bug/video filename space