add sort option for seminar list api.
sort_type_id:
1: order by recommended
2: order by newest
3: order by deadline
4 and default: order by start date.
Merge branch 'master' of https://github.com/givery-technology/Attache
mod seminar form.
mod typo on seminar form.
fix critical bug on user pages.
update sort function.
sort_type_id:
1: pick up
2: order by created_at desc
3: order by start_at desc
4: popularity
5: distance
add event type to seminar.
add search of event type.
add search of free text.
add job types to seminar.
add search of job types to seminar API.
POST prams are as follows:
-for_engineer: 0 or 1
-for_designer: 0 or 1
-for_director: 0 or 1
-for_sales: 0 or 1
-for_marketing: 0 or 1
-for_corporate_staff: 0 or 1
-for_others: 0 or 1
Merge pull request #2 from givery-technology/iOS

Merge old iOS branch into master
basically complete distance tab, start of portfolio/resume views
distance feed is basically done, maybe needs some logic updating in the data parsing.
added portfolio views and cell views. done most of the refactoring to more easily create the portfolio collection view.