Bleed cleanup (remove nocolorbleed GM & enable bleed in game bench)

The bleed GM now subsumes everything the nocolorbleed GM used to do.

Now that Ganesh fully supports the bleed flag I have enabled it in the atlased game bench. Here are the results (on Win7):


BEFORE (TextureDomain)
running bench [640 480] game_trans_full_atlas_drawVerts_aa   GPU: cmsecs =   0.00 gmsecs =   9.44
running bench [640 480]     game_trans_full_atlas_aa   GPU: cmsecs =  15.60 gmsecs =   5.88


AFTER (bleed)
running bench [640 480] game_trans_full_atlas_drawVerts_aa   GPU: cmsecs =   0.00 gmsecs =   9.43
running bench [640 480]     game_trans_full_atlas_aa   GPU: cmsecs =   0.00 gmsecs =   5.21

[bsalomon, 2013-08-21 12:54:18]

lgtm

[robertphillips, 2013-08-21 16:27:04]

On Mac: 


BEFORE (TextureDomain)
game_trans_full_atlas_drawVerts_aa   GPU: msecs =  25.00 cmsecs =  24.03 gmsecs
=  21.68
    game_trans_full_atlas_aa   GPU: msecs =  29.00 cmsecs =  28.78 gmsecs = 
12.8

AFTER (bleed)
game_trans_full_atlas_drawVerts_aa   GPU: msecs =  26.00 cmsecs =  24.19 gmsecs
=  21.78
    game_trans_full_atlas_aa   GPU: msecs =  13.00 cmsecs =  11.42 gmsecs =  
2.89

[robertphillips, 2013-08-21 16:30:57]

committed as r10853