[esvm] put esvm behind a flag
Update CONTRIBUTING.md
[grunt dev] use --with-es to start es
Merge branch 'grunt_esvm' into template_vistype
[grunt esvm] bind elasticsearch to localhost
Merge branch 'grunt_esvm' into template_vistype
[tableVis] define the default count agg
[kbnAggTableGroup] update ngIfs to look properly for splits
[aggResponse/tabify/ResponseWriter] only put splits on the stack