Update version

Author: OzzieIsaacs

cps/constants.py

@@ -163,7 +163,7 @@ def selected_roles(dictionary):
 BookMeta = namedtuple('BookMeta', 'file_path, extension, title, author, cover, description, tags, series, '
                                   'series_id, languages, publisher, pubdate, identifiers')
 
-STABLE_VERSION = {'version': '0.6.19 Beta'}
+STABLE_VERSION = {'version': '0.6.19'}
 
 NIGHTLY_VERSION = dict()
 NIGHTLY_VERSION[0] = '$Format:%H$'