seed organization
dropdown with placeholder and required indication; activist's organizations; event create update;
add small padding on top row;
support optional trailing slash in organization views
create Participant at Event creation
eventsCount for organization - calculated version;
organization.calcEventCount() on event.save();
организация поддерживает событие через модель Support; organization.updateSupportedEventCount() on support.save();
организация поддерживает победу через модель VictorySupport; organization.updateSupportedVictoryCount() on victorySupport.save();
conditional display of coordinator, participant and video add link
Merge branch 'master' into ui-events

Conflicts:
	packages/events/public/controllers/events.js
	packages/events/server/controllers/events.js
merge fix
participant.event; participant.update; smaller fixes;
organization view; $state.goBack(); smaller fixes;
при создании события, активист юзера, если он есть, становится координатором участником события; использование h4 вместо h2;
save participant only if he is a member of organization
Merge branch 'master' into ui-events

Conflicts:
	packages/events/public/views/view.html
	packages/events/server/controllers/events.js
	packages/participants/server/controllers/participants.js
	packages/victories/server/models/victory.js
state.authenticate; isOwner fix;
custom participant id

make participant id as string concatenation of activist id and event id
rename property 'event' to 'eventUser'