Merge pull request #33 from smirolo/master

ChangeLog and Getting Started
Merge pull request #34 from smirolo/master

edit getting started to generate testbed
Merge pull request #35 from smirolo/master

fixes: forgotten replace rule for Mem
towards 2.0 docs
merge docs
Added Reg constructor to make e.g. "val pc_taken = Reg(Bool(), take_pc, Bool(false))" less verbose
update for new riscv.org
update for new riscv.org
rename PipeIO to Valid and FIFOIO to Decoupled as per decision in chisel meeting Tue 7/27.
Merge branch 'master' of git://github.com/ucb-bar/chisel