Merge pull request #23 from jaavier/hotfix/storage-save-counter

Remove interval and store counters

Merge pull request #22 from jaavier/feature/get-counter

Function GetCounter

Merge pull request #22 from jaavier/feature/get-counter

Function GetCounter

Merge pull request #21 from jaavier/feature/incr-decr

Incr/Decr

Merge pull request #19 from jaavier/feature/delete-item-by-content-or…

…-index

Adding function to delete items from list by content or index

Merge pull request #18 from jaavier/feature/delete-key-list

Add functions to delete keys and lists

Merge pull request #17 from jaavier/feature/count-list

Add function to count list