Update configure_build.py to fix a bug in get_plugin_version.

configure_build.py

@@ -101,7 +101,6 @@ PLUGINS_FILES["extjs"] = [
 
 PLUGINS_FILES["mathjax"] = [
     "static/plugin_mathjax/fonts/HTML-CSS/TeX/woff",
-    "static/plugin_mathjax/images",
     "static/plugin_mathjax/jax",
     "static/plugin_mathjax/extensions",
     "static/plugin_mathjax/MathJax.js"]
@@ -164,7 +163,6 @@ def get_plugin_version(plugin):
 
         with open(VERSION, "rb") as tmpfile:
             release = tmpfile.read()
-            release = release.replace(".", "")
 
     elif plugin == "extjs":
 
@@ -205,6 +203,7 @@ def get_plugin_version(plugin):
         error("\n\tUnknown plugin %" % plugin)
         sys.exit(1)
 
+    release = release.replace(".", "")
     if len(release) == 2:
         release = "%s0" % release