minor cleanups
get frequency from RTIO, support fractional frequencies
soc/runtime: raise underflow exception for replace and DDS FUD operations
py2llvm: fix behaviour of 'break' in 'else' clause of loops
transforms/unroll_loop: handle breaks in try and with blocks
py2llvm: support break/return in try block
py2llvm: remove LLVM-crashing (unreachable) non-SSA path with exception ID
py2llvm: execute finally block when exception is re-raised in handler
test/full_stack: add exception test
py2llvm: factorize basic block termination test
py2llvm: support continue statement
test/py2llvm: test continue statement
transforms/unroll_loops: count statements in try blocks
add basic setup.py and infrastructure
gitignore: add setup.py things
add autobuild hook