Dev: Update contributing document to add note about contributions being under the MIT license (explicit concent required) and to acknowledge that DataTables is a large and complex project, so not all PRs can always be accepted.
Dev: Update contributing document to add note about contributions being under the MIT license (explicit concent required) and to acknowledge that DataTables is a large and complex project, so not all PRs can always be accepted.

BobJavascript/DataTables,aihua/DataTables,wwwcs59/DataTables,nickzhuyb/DataTables,BobJavascript/DataTables,nickzhuyb/DataTables,wesleifreitas/DataTables,vermaslal/DataTables,Lao-liu/DataTables,nandadotexe/DataTables,jochouen/DataTables,cbondo/DataTables,jeffi1011/DataTables,estcode/DataTables,champsupertramp/DataTables,stevewithington/DataTables,ilovezy/DataTables,champsupertramp/DataTables,jochouen/DataTables,michalsnik/DataTables,wwwcs59/DataTables,nickzhuyb/DataTables,stevewithington/DataTables,vermaslal/DataTables,Jeremy017/DataTables,michalsnik/DataTables,fashionsun/DataTables,BobJavascript/DataTables,estcode/DataTables,fashionsun/DataTables,modulexcite/DataTables,Golfer/DataTables,michalsnik/DataTables,wwwcs59/DataTables,57134898/DataTables,fashionsun/DataTables,scottyaslan/DataTables,Jeremy017/DataTables,estcode/DataTables,57134898/DataTables,scottyaslan/DataTables,ilovezy/DataTables,ilovezy/DataTables,57134898/DataTables,cbondo/DataTables,riyaze/DataTables,saipuli/DataTables,idleog/DataTables,champsupertramp/DataTables,jochouen/DataTables,stevewithington/DataTables,montrothstein/DataTables,Jeremy017/DataTables,wesleifreitas/DataTables,vermaslal/DataTables,cbondo/DataTables,performancematters/DataTables,modulexcite/DataTables,scottyaslan/DataTables,idleog/DataTables,idleog/DataTables,susith8/DataTables,wesleifreitas/DataTables,modulexcite/DataTables,sayfulit/DataTables,mrkz55/DataTables