REL: bump up version to 1.4.6

Author: dragonyanglong

CHANGELOG.md

@@ -11,10 +11,12 @@ Notable differences from version 1.1.2.
 
 ### Changed
 
+- Update wxpython to 4.1.1, and remove incompatible align flags.
 ### Deprecated
 
 ### Removed
 
 ### Fixed
 
--  Incompatible conversion between bytes and str from py2 to py3.
+- Incompatible conversion between bytes and str from py2 to py3.
+- Replace the deprecated `Thread.isAlive()` with `Thread.is_alive()`.

setup.py

@@ -15,7 +15,7 @@
 
 # Use this version when git data are not available, like in git zip archive.
 # Update when tagging a new release.
-FALLBACK_VERSION = '1.4.3'
+FALLBACK_VERSION = '1.4.6'
 
 # determine if we run with Python 3.
 PY3 = (sys.version_info[0] == 3)