Use more reasonable name for force build button

master.cfg

@@ -66,7 +66,9 @@ c['schedulers'] = []
 
 
 def schedule_force_build(name):
-    c['schedulers'].append(forcesched.ForceScheduler(name='force_' + name,
+    c['schedulers'].append(forcesched.ForceScheduler(
+        name='force_' + name,
+        buttonName="Force Build",
         builderNames=[name],
         codebases=[forcesched.CodebaseParameter(
                 codebase="blender",
@@ -93,7 +95,7 @@ def schedule_force_build(name):
 
 def schedule_build(name, hour, minute=0):
     for current_branch in NIGHT_SCHEDULE_BRANCHES:
-        scheduler_name = "nightly " + name
+        scheduler_name = "nightly_" + name
         if current_branch:
             scheduler_name += ' ' + current_branch
         # Use special addons submodule branch when building blender2.8 branch.