Auto-detect readline
Wire up MVM_HAS_READLINE and --no-readline
Clarified implications of not using --no-readline
added readlineint_fh op
Add linenoise as submodule
Pull in latest Linenoise
Change defaults of GNU Readline usage from auto-detection to on-demand
Allow different flags for linking system and user libs
Add space after -o to make Solaris happy
The first clarg should be the program name.
Always flatten ropes for now; avoids bugs.
Remove classname stage; was copy-paste from JVM.
Missing check_arity calls.

Needed because that triggers flattening.
Sync clargs test with progname reality.
Implement scobjcount op.
Makefile bikeshedding - in particular don't hide compiler output
Add missing initializer for local variable.

I'm assuming zero-initialization is correct here.
Merge branch 'master' into dll

Conflicts:
	Configure.pl
	build/setup.pm
Header bikeshedding
Cleanup build/*.pm