Added --nofetch option to init-branch to set up TFS remote for branch
without doing a fetch.  Usefull to check config file before executing
fetch.
Now fails when --all and --nofetch are used on init-branch at the same time
Added test for case with --all and --nofetch
Merge pull request #379 from wundram/initbranch-nofetch

Added --nofetch option to init-branch