This obviates any latent fuckery with := or <>.

This is a public API, so we mustn't change it without good reason.

We now call collectElts when the module stack is popped,
rather than having to do it all over the place.

Packagedir

Remove chiselVersion from Makefile; correct bit order for toBits; correct Vec() factory signature; Builder.pushCommands in test to avoid empty list head if tester manipulates Chisel nodes.

Use CHISEL_BIN, CX, generalize generated/targetDir, convert filter to python, cd into targetDir before launching simulator (via Driver).

Updated Scala (2.11.6) and Chisel (3.0) versions.
Add chisel2 Makefile

use delayed init to ensure collectelts and further improve walk bundle and changed getDeclaredMethods to getMethods for inheritance but still gets constructor param

This probably breaks some stuff.