Loosened dependencies up a bit due to the high likelyhood of global conflicts.
Ignore IDE.
Crawler now crawls only new links recursively.
Added actions which can be applied to the results of the crawling process. Fixed recursion problem. Adjusted command verbosity.
Added save-hashed action to crawl command.
Moved command into console namespace.
Added minify action using zaininnari/html-minifier.
Merge branch 'feature/handlers-for-crawled-results' into develop
Added travis ci to check for version compatibility.