A few bug fixes
Added full support for wildcards ( FILTER region BY r_name LIKE "A?RI%A")
A few bug fixes
Performance improvements for groupby and load operations.
lex.yy.c
Updated read.me
updated read.me
Added better formatting.
A few fixes.
Fixed an issue with string processing.
Added Q4
Merge remote-tracking branch 'remotes/upstream/master'

Conflicts:
	bison.cu
	cm.cu
	cm.h
	compress.cu
	main.cu
Updated with Donovan's comments