Merge branch 'dovg'

* dovg:
  connection to DB was alredy open before this method
  revert url
  typo
  it looks like cache was completed
  cleaup
  first version of getting with cache
  work in progress: get mark of caches. Prepare to fetch caching value
  refactor: move cycle with essences to the method
  I need crypto
  + placeholders for new code
  tests for caching introdused
  memcached was added to dependency list
  test dump
  repo url was changed
  * gitignore fixed
  tests were updated due to new api
add possibility to add extra select fields to jorm
typo
Merge pull request #1 from anisimovt/master

fix extra fields select