* crawls api improvements (fixes#110)
- add GET /crawls/{crawlid} api to return single crawl
- resolve crawlconfig name, add as `configName` to crawl model
- add 'created' date for crawlconfigs
- flatten list to single 'crawls' list, instead of separate 'finished' and 'running' (running crawls added first)
- include 'fileCount' and 'fileSize', remove files
- remove `files` from crawl list response, also remove `aid`
- remove `schedule` from crawl data altogether, (available in crawl config)
- add ListCrawls response model