Update createtable.c
Update buffer.c
Update createtable.c
Update createtable.c
Create describe.c
Update buffer.c
Update createtable.c
Update buffer.c
Update describe.c
Create create_describe_test.c
Merge branch 'jingo' into chingfan

Conflicts:
	src/buffer.c
	src/createtable.c
tested create&describe
add describe.h