Changed initialization of gitissius branch, keeping untracked files.

Tracked files are removed, but untracked ones are not.
Added bash completion script.
Removed hardcoded upstream branch 'origin'.
Changed bash completion to suggest all issius.
First (nonfunctional) version of importXML command
Add testing data to the repository.
It is somehow working, but no comments.
We need to commit comments as well.

But it still doesn't work AND CORRUPTS GIT TREE

matej@wycliff: be (import-xml-fail %)$ git fsck
fatal: corrupt tree fileies:  50% (128/256)
matej@wycliff: be (import-xml-fail %)$