hererocks 0.1.0

New features/improvements:

• --verbose flag that prints commands hererocks runs.
• hererocks now checks if requested versions are already installed, and skips installation in that case. Override using --ignore-installed/-i flag.
• PUC Rio Lua now has default git URI.

Fixes:

• Installing from a git branch now works with newer git versions.

Breaking changes:

• Removed -c and -t shortcuts.