.li warning when placing .pn
.li warning when placing .pn
Fix for issue with ' character contained in .il alt parameter
Merge pull request #30 from davem2/bugfix-alt-apostrophe

Fix for issue with ' character contained in .il alt parameter. Thank you David.
version 3.35
More robust error handling for .dm command

Enhanced .dm to detect several error situations and issue error message
rather than terminating with Python stack trace:
(1) .dm without a macro name
(2) missing .dm- (either hit another .dm or end-of-file)