2-round Phobos.std voting process

[Dicebot]

I think that core issue with this proposal is that it stays too 
far from actual Phobos development reality and described process 
is just too slow :) I am in favor of longer and more stable 
transitions but in 12 months even core Phobos modules may have 
API tweaks (not counting breaking compiler changes :P). It does 
not make much sense to go for safer module inclusion process when 
core language development still stays pretty close to bleeding 
edge.

I'd propose to go directly opposite way - very flexible dub 
packages in special category that get reviewed on regular basis 
and put onto vote once API is set in stone and used in such form 
for month or so. Voting to include into this category is 
unnecessary, it should be enough to simply conform certain style 
guidelines. After all, main goal is to get continuously reviewed 
and easily accessible module proposals.