Bump version to 3.0

Author: waylan

docs/change_log/index.md

@@ -3,7 +3,7 @@ title: Change Log
 Python-Markdown Change Log
 =========================
 
-???, 2018: Released version 3.0 ([Notes](release-3.0.md)).
+Sept 21, 2018: Released version 3.0 ([Notes](release-3.0.md)).
 
 Jan 4, 2018: Released version 2.6.11 (a bug-fix release). Added a new
 `BACKLINK-TITLE` option to the footnote extension so that non-English

markdown/__init__.py

@@ -33,7 +33,7 @@
 # (major, minor, micro, alpha/beta/rc/final, #)
 # (1, 1, 2, 'alpha', 0) => "1.1.2.dev"
 # (1, 2, 0, 'beta', 2) => "1.2b2"
-__version_info__ = (3, 0, 0, 'alpha', 0)
+__version_info__ = (3, 0, 0, 'final', 0)
 
 
 def _get_version():  # pragma: no cover