Adds really basic style guide for future contributions.

Author: GraylinKim

STYLE_GUIDE.rst

@@ -0,0 +1,39 @@
+STYLE GUIDE
+==============
+
+Use your common sense and have some decency. Also try to stick to the following where reasonable.
+
+
+Absolute Imports
+----------------------
+
+Always use absolute imports::
+
+	from __future__ import absolute_import
+
+That means imports should always start with sc2reader... instead of being relative to the current module.
+
+	from sc2reader.utils import ReplayBuffer
+
+
+Explicit Imports
+---------------------
+
+Prefer explicit imports to globbed imports
+
+	from sc2reader.events import ChatEvent
+
+is better than
+
+	from sc2reader.events import *
+
+
+Formatting Strings
+-----------------------
+
+Use string.format(args) instead string % (args).
+
+To support python 2.6, use numerical indexes even though it is a pain in the ass::
+
+	"{0} minerals, {1} gas, {2} terrazine, and {3} custom".format(self.minerals, self.vespene, self.terrazine, self.custom)
+