adds intersection
deriv symbolic regexp
adds intersection
deriv symbolic regexp
Merge branch 'master' of github.com:tiliang/CVC4
adds new feature: re.loop
adds intersection
deriv symbolic regexp
adds intersection
adds new feature: re.loop
Merge branch 'master' of github.com:tiliang/CVC4

Conflicts:
	src/theory/strings/regexp_operation.cpp
	src/theory/strings/regexp_operation.h