Issues 158. Backport WFSGrid and WFSGridTabPanel
Merge branch 'master' of https://github.com/geosolutions-it/MapStore into mapstore_issue158
Merge branch 'master' of https://github.com/geosolutions-it/MapStore into mapstore_issue158
Fix about empty grid by Alejandro in TabPanelWFSGrid plugin
Merge pull request #321 from mricca/mapstore_issue158

Issues 158. Backport WFSGrid and WFSGridTabPanel