No logging.
nomv done
mvcombine done
gauge done
Merge branch 'master' into nologging
Merge branch 'master' into nologging
updated toplevel rules to support subsearch
append works
added tests for append
added appendcols
added join rules
Added functions to ParseTreeNode to enable detection of supertrees (e.g., is_supertree_of returns a boolean).
Merge branch 'master' of github.com:salspaugh/splparser into nomv
change lexer
change lexer
Merge branch 'master' of github.com:salspaugh/splparser into mvcombine
fix lexer and add option value
fix lexer and add option value
outlier done
left with a strange problem