improve: Use cursor to count total in perfstore
Merge branch 'bugfixes' of github.com:capensis/canopsis into bugfixes
improvement: remove indexes from db, store and cstorage
Revert "improvement: remove indexes from db, store and cstorage"

This reverts commit a2e5ea172976b9288b0cb01cce692b8802ca33fc.
improvement: remove db indexes from cstorage and store, and add indexes in db updating
fix: add commas in db indexes initialization
don't add automatically  operator in mongo filters if filters is an array of one item
Merge branch 'bugfixes'
improve mongo find requests in resolving sort, limit and offset by server processing instead of pymongo, and ensure there is no rest request in textcell in case of no selected metric.