Grunt plugins generated via init:gruntplugin no longer depend on grunt per gh-263.
Grunt plugins generated via init:gruntplugin no longer depend on grunt per gh-263.

* grunt is still a devDependency.
* If someone wants to create a globally-installable gruntplugin with a bin script, grunt will need to be specified as a dependency.

q310550690/grunt,pandeysoni/grunt,eelve/grunt,youmyyou/grunt,shama/grunt,FeodorFitsner/grunt,JaKXz/grunt,felixgrey/grunt,lkiarest/grunt,Chhunlong/grunt,IveWong/grunt,abraheem/grunt,yonglehou/grunt,fscherwi/grunt,imjerrybao/grunt,r14r/fork_grunt_master,r14r-work/fork_grunt_master,arosa81/grunt,paulcbetts/grunt,zackexplosion/grunt,ThiagoGarciaAlves/grunt,goodeggs/grunt,modulexcite/grunt,paladox/grunt,yuhualingfeng/grunt,yosiazwan/grunt,thecc4re/gruntjs,thejameskyle/grunt,vladikoff/grunt,coldrye-collaboration/grunt