Merge pull request #8 from metaflow/misc

Misc fixes from @metaflow.

- Fixed some typos
- Can double click on search results to take you to line number
- More context in status line
- Default prompt shows `file:* case:yes`
- Corrected quoting bug
- Corrected Windows path handling bugs
- File paths relative to project

See #8 for full context.

Add the install message.