Closes 146

The attempt to capture git version information is not much more robust.
If any error is raised, the error is printed, but won't break the
install. This means if, for example, git it not installed then it will
still work.

setup.py

@@ -26,16 +26,18 @@ def write_version_file(version):
                     + subprocess.check_output(
                         ['git', 'diff', '--cached', '.'])).decode('utf-8')
         if git_diff == '':
-            status = '(CLEAN) ' + git_log
+            git_status = '(CLEAN) ' + git_log
         else:
-            status = '(UNCLEAN) ' + git_log
-    except subprocess.CalledProcessError:
-        status = ''
+            git_status = '(UNCLEAN) ' + git_log
+    except Exception as e:
+        print("Unable to obtain git version information, exception: {}"
+              .format(e))
+        git_status = ''
 
     version_file = '.version'
     if path.isfile(version_file) is False:
         with open('tupak/' + version_file, 'w+') as f:
-            f.write('{} - {}'.format(version, status))
+            f.write('{}: {}'.format(version, git_status))
 
     return version_file