Remove remotecrawler.py

Unused a long time now, completely obsoleted
Trailing whitespace cleanup

All over the place
Fix 2 syntax errors

Two minor typos that caused syntax and import errors
Remove rendundant 'R' from Equipment model unicode

Since we now have proper names for Racks, that 'R' character when
creating a string representation of an Equipment is rendundant
Namespacing BMC vendor implementations and command

This renames _common, dummy and ilo3 modules to bmc_ counterparts in
order to achieve namespacing in vendor implementations and commands.
This allows for other types of vendor implementations to coexist in both
the Django management commands space as well as the hwdoc vendor space