char - Modified internals to accept strings and varargs strings as arguments, not just single char. Drops the need for externa split/join combos to handle strings. Extended the testsuite to match. Further refactored the argument handling into a single helper command.
Modified support command "make-parser" to be able to save generated code into a file for post-run inspection.
Tweaked code formatting
runtime - literal arg of param_intern is const, make it so.
pt::parse::peg - test - Moved table of constructed test cases, plus fixed variables out of the loop. And ensured that initialization does not extend the table evermore.
Fixed the generators to generate properly listified and quoted error messages
pt::rdengine (C) - Fixed the generation of error messages by the dynamic C runtime, i.e. made it generate proper lists.
pt::parse::peg (C) - Updated with the fixes to the C generator.