Added rest method from geoserver API Rest
Function for checking if a workspace name exits.
Merge pull request #79 from juanluisrp/check-if-exists-workspace

Function for checking if a workspace name exits.
Override method reset
Merge add and delete columns changes
Merge pull request #81 from alediator/8.5-SNAPSHOT-merge-ajrodriguez-8.5-SNAPSHOT_Columns

8.5 snapshot merge ajrodriguez 8.5 snapshot columns