sim/prob is a macro to avoid wrapping in delay
Added macro for sim/after to avoid wrapping in delay
quote syntax for sim macros
Merge branch 'placeholders' into develop

Conflicts:
	src/protean/core/transformation/sim.clj
petstore sim calls protean echo service
add sim infrastructure to osx brogrammer build
Merge branch 'develop' of github.com:passivsystems/protean into develop
Merge branch 'macros' into develop