added new icon for old "contact" page
changed contact page to important page
info page: changed tel numbers, added new sections
seminar fethcher: added support for incomplete json, changed update page url
due to arc requirements removed dispatch_release
changed sdk to 6.0
removed dispath_release call
main page: new seminar types, arc requirements

changed constants to static
added default icon for uknown seminar type
removed dispatch_release
seminar list: added all seminars to section list instead of BK
seminar: removed price info everywhere but seminars