Merge pull request #30 from alexzaporozhets/#16

#16 moved style for /account#!/adverts page in adverts.less, added butto...
renamed fields in statistic models
renamed fields in statistic models
renamed fields in statistic models
renamed fields in statistic models
now keywords and regions -- arrays
changed url for adspaces page
Merge pull request #31 from alexzaporozhets/#16

#16 changed buttons images (new with transparent background).
added table on page adspaces and removed some bug tags from page adverts-list
added billing page in progress
modified pages for place ads and billing in progress
billing in progress
billing in progress
added referrer id into click's model
added referrer id into click's model
added profile page and icons into user's menu
added saving bitcoin number, but not complete yet
added saving bitcoin number, but not complete yet
added saving bitcoin number, but not complete yet
added saving bitcoin number, but not complete yet