Fixes #93. When parsing meta rules add parentheses around them so ! a…#96

Draft

bitsikas wants to merge 2 commits intomasterfrom issue_93

+17-5

Commits on Feb 25, 2019

Fixes #93 . When parsing meta rules add parentheses around them so ! applies to the rule before doing other operations
bitsikas
committed

Commits on Mar 1, 2019

Added test using complex rules and +\!. Should help developement
root
committed