Moved unicode function declaration to a compatibility module.

This is used (as the name suggests) for compatibility between Python 2 and
Python 3.

gitinspector/compatibility.py

@@ -0,0 +1,27 @@
+#!/usr/bin/python
+# coding: utf-8
+#
+# Copyright © 2013 Ejwa Software. All rights reserved.
+#
+# This file is part of gitinspector.
+#
+# gitinspector is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# gitinspector is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with gitinspector. If not, see <http://www.gnu.org/licenses/>.
+
+import sys
+
+try:
+	unicode
+except NameError:
+	def unicode(string):
+		return str(string)

gitinspector/gitinspector.py

@@ -21,16 +21,14 @@
 from __future__ import print_function
 from __future__ import unicode_literals
 
-#Small fix for Python 3
-try:
-	unicode
-except NameError:
-	def unicode(string):
-		return str(string)
-
 import localization
 localization.init()
 
+try:
+	from compatibility import unicode
+except:
+	pass
+
 import blame
 import changes
 import config