Fix fileexplorer issue on cancel #739
Merge branch 'master' of github.com:Heigvd/Wegas

# By Francois-Xavier Aeberhard
# Via Francois-Xavier Aeberhard
* 'master' of github.com:Heigvd/Wegas:
  Fix issue in host's switch to edit button
  Fix issue in variable treeview filter
  Fix issue in pageloader.js
  Fix issue in host.xhtml