Merge pull request #1 from tvheadend/master

sync with main repository
scraping season/episode numbers for sky-it

Extended the already present hack to extract such numbers from episode descriptions in Sky IT EPG data.
improved regexs management

As suggested by perex, moved patterns and regexs as global variables and their management in opentv_init/opentv_done.
several adjustments

- make use of ARRAY_SIZE macro;
- missing static keyword for global variables;
- better patterns for sky-it with possibility to support a description without season specification;
- debug messages;
Merge pull request #478 from diraimondo/master

scraping season/episode numbers for sky-it