fix: added a work-around to the issue of regex converter not loaded.

frappe app doesn't load all python modules of all the apps on startup. It
loads the hooks.py only if it is not already cached. Because of this the code
to install the regex coverter to not running, causing errors.

Fixed it by replacing the regex route with a string route. The issue is it
also matches the paths like `socket.io` and `website_script.js` etc. Handled
that by whitelisting those routes.

community/__init__.py

@@ -3,8 +3,5 @@ from __future__ import unicode_literals
 
 __version__ = '0.0.1'
 
-from .routing import install_regex_converter
-install_regex_converter()
-
 # load the methods from the lms api
 from .lms import api # noqa

community/hooks.py

@@ -129,9 +129,7 @@ scheduler_events = {
 
 # Add all simple route rules here
 primary_rules = [
-    {"from_route": "/sketches", "to_route": "sketches"},
     {"from_route": "/sketches/<sketch>", "to_route": "sketches/sketch"},
-    {"from_route": "/courses", "to_route": "courses"},
     {"from_route": "/courses/<course>", "to_route": "courses/course"},
     {"from_route": "/courses/<course>/<topic>", "to_route": "courses/topic"},
     {"from_route": "/courses/<course>/<topic>", "to_route": "courses/topic"}
@@ -142,13 +140,18 @@ whitelist = [
     "/login",
     "/update-password",
     "/update-profile",
-    "/third-party-apps"
+    "/third-party-apps",
+    "/website_script.js",
+    "/courses",
+    "/sketches",
+    "/admin",
+    "/socket.io",
 ]
 whitelist_rules = [{"from_route": p, "to_route": p[1:]} for p in whitelist]
 
 # regex rule to match all profiles
 profile_rules = [
-    {"from_route": "/<regex('[a-z0-9-]{5,}'):username>", "to_route": "profiles/profile"},
+    {"from_route": "/<string(minlength=5):username>", "to_route": "profiles/profile"},
 ]
 
 website_route_rules = primary_rules + whitelist_rules + profile_rules