CQL 1.2.12

This is a maintenance release of the translator that addresses the following issues:

#206 Formatter deletes CQL when a quote is not closed
#207 CQL expression with errors being reformatted
#210 Comments inside an expression causing unexpected formatting
#212 Updated QDM 5.3 model info based on errata and clarifications
#214 Fixed code-valued retrieve relying on list promotion
#215 Formatter deleting CQL with an inline comment