Fixed error causing analysis not to be updated.
Made minor improvement to text.
Added previously non-tracked file respective to production server.
Added template of google analytics.
Added crawler to git. Started working on new crawler.
Added "AbstractCrawler" and made crawler a subclass of it.
Added a "StaticDataCrawler", used to only retrieve one-time data.
Improved crawler's API, both code and docs.
Updated README with sharing the crawler.
Merged branch 'crawler', adding the crawler to git.
Improved query of entity's contracts by caching contracts ids.