package.json: use devDependencies throughout
package.json: use devDependencies throughout

None of the dependancies listed are actually required for *using*
TinyMCE, but merely when building it. The distinction is mainly an
issue of clarity and correctness, as TinyMCE isn't used as a Node
package proper.

Kindling/tinymce,nikolas/tinymce,kencheung/tinymce,danielpunkass/tinymce,leofeyer/tinymce,M4R7iNP/tinymce,howanghk/tinymce,Shopify/tinymce,1099511627776/tinymce,bsuh/tinymce,support-dot-com/tinymce,rxl194/tinymce,fashionsun/tinymce,jashua212/tinymce,jtark/tinymce,danielpunkass/tinymce,FernCreek/tinymce,henrythewasp/tinymce,pmpl-5/tinymce,MediehusetTek/tinymce,nikolas/tinymce,shilpi230/tinymce,endjin/tinymce,FernCreek/tinymce,TeamupCom/tinymce,support-dot-com/tinymce,simachewh/tinymce,M4R7iNP/tinymce,MediehusetTek/tinymce,sjbufton/tinymce,shilpi230/tinymce,VioletLife/tinymce,Kindling/tinymce,danchr/tinymce,ChristophKaser/tinymce,kencheung/tinymce,tinymce/tinymce,fhchina/tinymce,henrythewasp/tinymce,Zimbra/tinymce,aduth/tinymce,danchr/tinymce,bsuh/tinymce,ETSI-CTI/TinySpecMCE,fillabs/TinySpecMCE,rbecheras/tinymce,adaptiffdesigns/tinymce,ikuchmin/tinymce,ikuchmin/tinymce,Razzwan/tinymce,tinymce/tinymce,endjin/tinymce,adaptiffdesigns/tinymce,Zimbra/tinymce,ETSI-CTI/TinySpecMCE,fhchina/tinymce,gencer/tinymce,rednose-public/tinymce,blakewallan/tinymce,sachgits/tinymce,fillabs/TinySpecMCE,aduth/tinymce,blakewallan/tinymce,fashionsun/tinymce,sachgits/tinymce,rxl194/tinymce,ice8lue/tinymce,TeamupCom/tinymce,nbcp/tinymce,gabixdev/tinymce,danielpunkass/tinymce,tinymce/tinymce,sjbufton/tinymce,howanghk/tinymce,rednose-public/tinymce,rbecheras/tinymce,gabixdev/tinymce,jtark/tinymce,gencer/tinymce,1099511627776/tinymce,leofeyer/tinymce,VioletLife/tinymce,dziemian007/tinymce,enfold/tinymce,simachewh/tinymce,dziemian007/tinymce,ChristophKaser/tinymce,FernCreek/tinymce,Razzwan/tinymce,ice8lue/tinymce,jashua212/tinymce,pmpl-5/tinymce,enfold/tinymce,nbcp/tinymce