scape modloadmsg
just escape chars in CHARS_TO_ESCAPE
CHARS_TO_SCAPE is a class var.
Escape using .join instead of a loop
style fix in module_generator.py
enhance msg_on_load unit test to verify escaping of '$'
Merge pull request #11 from boegel/scape_msg_on_load

style fix + enhanced unit test for escaping load msg
Merge pull request #1068 from pescobar/scape_msg_on_load

escape modloadmsg