align package build times by padding package names

Fixes #14
fix status line output when --no-deps is used

fixes #13
Merge pull request #17 from catkin/issue_13

fix status line output when --no-deps is used
Merge pull request #16 from catkin/issue_14

align package build times by padding package names
add ability to do verb aliasing with config files
added the --list-aliases command
added documentation for verb aliases