bash_aliases: additions and tweaks

* New Invenio structure aliases;
* Wrapped service alias;
* Kill invenio addition;
* upcswwd will switch to next branch upon completion;
* upcswwd renamed;
* flake8 alias;
* cdv updated to cd to correct Invenio directory.

Signed-off-by: Adrian-Tudor Panescu <adrian.tudor.panescu@cern.ch>