Render cyrillic text correctly

fixes fex-team#66

Author: aol-nnov

src/kityminder.css

@@ -1,5 +1,5 @@
 .km-view {
-    font-family: "STHeitiSC-Light", "STHeiti", "Hei", "Heiti SC", "Microsoft Yahei", Arial, sans-serif;
+    font-family: Arial, "STHeitiSC-Light", "STHeiti", "Hei", "Heiti SC", "Microsoft Yahei", sans-serif;
     -webkit-user-select: none;
     user-select: none;
     position:  relative;
@@ -90,4 +90,4 @@
 
 .km-image-viewer .km-image-viewer-close {
     background-position: 0 -44px;
-}
+}