Added options to transform url before fetch
updated REadme
Added 'split' type
Update README.md
removed debug
Added possibility to modify content
Merge branch 'splitSupport'

Conflicts:
	init.php
Splitted functions and added possibility to test
updated readme
fixed get config section
fixed init function leftovers
Cleaned up and fixed missing encoding
Update README.md

Added description for modify option
Merge branch 'master' of https://github.com/m42e/ttrss_plugin-af_feedmod