Froze MI-PYT for semester B171 at 836ba4a (#386)

Merges #386

Author: mikicz

runs/2017/mipyt-kam/info.yml

@@ -0,0 +1,2 @@
+repo: https://github.com/cvut/naucse.python.cz.git
+branch: b171

runs/2017/mipyt-kam/link.yml

@@ -0,0 +1,2 @@
+repo: https://github.com/cvut/naucse.python.cz.git
+branch: b171

runs/2017/mipyt-zima/info.yml

@@ -9,8 +9,6 @@
 
 
 @pytest.mark.parametrize(('slug', 'weekday'), [
-                             ('runs/2017/mipyt-zima',
-                              calendar.WEDNESDAY),
                              ('runs/2017/pyladies-praha-podzim-cznic',
                               calendar.TUESDAY),
                              ('runs/2017/pyladies-praha-podzim-ntk',