Global instance allows to set the api key from settings on first
created instance of the imdb object only,
so changes on settings had no effect during runtime and
restart of neutrinon was required to apply ne keys.
This should fix this.
- fix license text
- move unused include unistd.h into cpp file
- scope of the variable 'line' reduced.
- remove variable 'pos_firstline', its value was never used.
- remove unused variable: search
- remove variables 'pos_search1', 'pos_search2'... values never used.
- add member variable 'CIMDB::acc' into constructor, was not initialized
- move include for cc.h into cpp file
