#32 fixed more bugs and added timer

- fixed: asset tasks got edited twice on createn
- fixed: all assets have name/description of first assetpath
- if the server needs a lot of time while bundling messages, it will
stop bundling and send all messages it has up to that point so the
client receives an status update. Client will just request next bundle
in this case.
- renamed loadTasksDialog to bundledMessageDialog and moved dialog to
other universal dialogs in all_template.tag
- set css position:fixed as default for all dialogs
small beauty fix for toImport asset list