Factored out location name + parameter name combination.

There's a unicode problem in here; this change makes it easier to test.
Added test that demonstrates the unicode problem
Added fix for unicode encodeerror
Switched from aptitude to apt-get.
The latest ubuntus don't contain aptitude anymore by default.
Updated changelog
Merge pull request #1 from lizardsystem/reinout-unicodefix

Fix for WRO: some locations give no result