FIXED: replace js Array.map function with capp API
FIXED: replace js Array.map function with capp API

Also fixed BlockExpression description to match a little more with
cocoa impl.

tancred/cappuccino,mrcarlberg/cappuccino,krodelin/cappuccino,Dogild/cappuccino,cappuccino/cappuccino,Rosch/cappuccino,krodelin/cappuccino,FrankReh/cappuccino,tancred/cappuccino,daboe01/cappuccino,rgv151/cappuccino,mrcarlberg/cappuccino,krodelin/cappuccino,rgv151/cappuccino,cappuccino/cappuccino,cappuccino/cappuccino,krodelin/cappuccino,FrankReh/cappuccino,Dogild/cappuccino,mrcarlberg/cappuccino,enquora/cappuccino,FrankReh/cappuccino,daboe01/cappuccino,enquora/cappuccino,cappuccino/cappuccino,daboe01/cappuccino,Rosch/cappuccino,mrcarlberg/cappuccino,rgv151/cappuccino,Rosch/cappuccino,Rosch/cappuccino,Rosch/cappuccino,tancred/cappuccino,Rosch/cappuccino,zittix/cappuccino,mrcarlberg/cappuccino,enquora/cappuccino,daboe01/cappuccino,rgv151/cappuccino,mrcarlberg/cappuccino,enquora/cappuccino,tancred/cappuccino,zittix/cappuccino,Dogild/cappuccino,zittix/cappuccino,cappuccino/cappuccino,rgv151/cappuccino,FrankReh/cappuccino,krodelin/cappuccino,mrcarlberg/cappuccino,daboe01/cappuccino,Dogild/cappuccino,zittix/cappuccino,FrankReh/cappuccino,tancred/cappuccino,zittix/cappuccino,Dogild/cappuccino,FrankReh/cappuccino,tancred/cappuccino,rgv151/cappuccino,Dogild/cappuccino,enquora/cappuccino,FrankReh/cappuccino,enquora/cappuccino,Rosch/cappuccino,FrankReh/cappuccino,rgv151/cappuccino,enquora/cappuccino,cappuccino/cappuccino,Dogild/cappuccino,zittix/cappuccino,krodelin/cappuccino,cappuccino/cappuccino,mrcarlberg/cappuccino,zittix/cappuccino,krodelin/cappuccino,daboe01/cappuccino,daboe01/cappuccino