API def update to 1.1

I updated the $api_def variable to exactly reflect the current Twitter API 1.1 REST methods (ordered like in the docs, too) and made other tweaks so the library can use 1.1 only. I didn't test all the endpoints, but most of them (on production at Twittie.com).

I simplified importing of the docs into Perl by creating a Scrapy (python crawling framework) spider that scrapes Twitter API docs and puts the data into structure used by $api_def.

I'm submitting this pull request because I think you should find this useful (and the deadline is approaching).