add license, no more SCRAPER_ENV, request.form

scrapers default to live scrapes and only use the test/*.html if
DEBUG=True is specified.

request.form use on normal /search and /spaceinfo along with sensible
changes from @mikewadsten code
Switch APIs to use GET requests instead of POST.
AGPLv3 license
Merge pull request #27 from mikewadsten/master

Change to GET instead of POST.