Compiler nearing completion.  Mostly just needs a driver.
Add utility code for really nice command-line option parsing and start using it in the compiler (still WIP).
Compiler actually running plugins!  Hooked it up to capnpc-capnp (the loopback plugin).  Working on getting the output identical to the old capnpc...  still a few bugs left.
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Fix compiler bugs.  Now test.capnp compiles to an identical schema to the old Haskell compiler, minus intentional changes.
Fix GCC issues.
Samples need to be compiled with -pthread now.
Apparently at_quick_exit() doesn't exist on most platforms.  Oh well, just use _Exit().
Implement more compiler options.
Refactor compiler binary into a multi-tool with sub-commands like 'compile' and 'decode'.  The latter dynamically decodes binary input to text based on a provided schema file.
Update Makefile.am to build new compiler.  Not bootstrapping yet, of course, since the C++ output plugin is not written.
Fix problem with vpath builds.
Merge branch 'master' into benchmark