Better CLI error message when options are invalid
cleaner GC switching
revert to old GC; use --gc:v2 to activate the new GC
rebuilt C sources for bootstrapping
fixed embarrassing memory leak in 'collectCycles'
first version of a simple mark&sweep GC; activate with --gc:markAndSweep
code cleanup for mark&sweep GC
made some tests green
rawEcho hack for kwin target
fix for exit code of compiler (JS bug?)
hack for long string literals in C bugs in JS. Fixed.
Merge pull request #327 from Tass/master

KWin echo hack and string literal fix.
working cycle collector for old GC
open arrays documented in the manual
Merge branch 'master' of github.com:Araq/Nimrod
updated news.txt
Merge branch 'master' of github.com:Araq/Nimrod

Conflicts:
	lib/system/gc.nim
GC: incRef needs to add cycleroots
added GC_addCycleRoot
micro optimizations for the evaluation engine