Improved and new commands

#### Added:
- `price <item name>,[system name]`: Shows buy and sellorders for this item in given system or Jita

#### Improved:
- `character <character name>`: Shows Employment History and Secstatus of a single character now
- `character <character name>,<character name>,<character name>,...`: Supports multiple characters now

#### Fixed
- `route`: Does not show empty routes