add map reduce for calculating score for each participant in each category
added ,apreduce for calculating score
rewrite all test. All passed without errors.
categories controller partly rewroten in new models api
add fictive models after map_reduce
categorize works, import works. TODO participants
fix bugs in cpontroller registrations to set was/skip
CalculateParticipant makes sums of categories. Participant/show page works
Calculate partis store info about participants. Fix view of part/index and part/show
use base64 encoding for participant param. Add edit action
YEES, participant merging works.
set categories for participants works
fix indentions in all files
fix to_params for Participant
categories show works
add index on categories in calculatedParticipants and  Change map-reduce
categories filter works
add count of skips and participating to participants table