Bump to RBTools 0.4.0 dev.
Bump to RBTools 0.4.0 dev.

datjwu/rbtools,haosdent/rbtools,halvorlu/rbtools,halvorlu/rbtools,reviewboard/rbtools,davidt/rbtools,clach04/rbtools,1tush/rbtools,bcelary/rbtools,reviewboard/rbtools,haosdent/rbtools,reviewboard/rbtools,datjwu/rbtools,datjwu/rbtools,halvorlu/rbtools,Khan/rbtools,Khan/rbtools,beol/rbtools,davidt/rbtools,beol/rbtools,clach04/rbtools_0.4.1,beol/rbtools,davidt/rbtools,haosdent/rbtools