fixed bug where context menu options did not support paths containing spaces
Merge pull request #205 from Tieske/context_menu_fix

fixed bug where context menu options did not support paths containing spaces
adds flag `--verbose` as equivalent for config file `verbose = true`
Normalizes paths displayed from `search` module, used for searching and listing installed rocks
take urls into account besides local paths
fixed wrong tree order in config file; order was user - system. Now corrected to system - user. So installations default to system tree.
Merge pull request #208 from Tieske/treeorder

Installer defined trees in wrong order
Merge pull request #207 from Tieske/normpath

Normalize search and list output paths on Windows
Merge pull request #206 from Tieske/verbose_flag

adds flag `--verbose` as equivalent for config file `verbose = true`