unittest: Release 0.3.1.

unittest/metadata.txt

@@ -1,3 +1,3 @@
 srctype = micropython-lib
 type = module
-version = 0.3
+version = 0.3.1

unittest/setup.py

@@ -7,7 +7,7 @@ sys.path.append("..")
 import optimize_upip
 
 setup(name='micropython-unittest',
-      version='0.3',
+      version='0.3.1',
       description='unittest module for MicroPython',
       long_description="This is a module reimplemented specifically for MicroPython standard library,\nwith efficient and lean design in mind. Note that this module is likely work\nin progress and likely supports just a subset of CPython's corresponding\nmodule. Please help with the development if you are interested in this\nmodule.",
       url='https://github.com/micropython/micropython-lib',