added 'Organisation' model'
added 'static pages controller' (with only action 'home', which is empty for now)
added ability to show google map on home page:
- added gmaps4rails gem (along with underscore-rails which needed also work gmaps successful work)
- added needed linse to assets pipline
added template for home action, which shows google map
root set to static_pages#home
'type' column in 'Organisations' is renamed ot 'org_type' since 'type' is reserved
added ability to place markers on map:
building markers info hash in 'home' action;
added line for displaying string to script in 'home' template
added separate table for organisation types: 'OrgType', added needed relations between Organisation and OrgType
added ability to filter organisations:
route to POST filter parameters
script for updating map without refreshing page
filter now applied automatically on change droplists value