Update docs.coffee

Docs requests can now be targeted at a user.

Format: `user !docs`, `user: !docs`, `user, !docs`
Update docs.coffee

adjusted how the response is built
Added ability to return Jump To links

Adjusted search to Google's regular search [removed API search]. Added User-Agent header to request to get correct page structure back.
Update docs.coffee

Adjustments that were annotated. Removed searching docs based on minor version (yields no google results). Fixed flimsy space in regex.
Merge pull request #17 from lagbox/feature/docs-jump-to

Add "Jump To" links to !docs requests and target nick for response.