Rename: pb-mentoring -> step-builder; pb-mentoring-step -> sb-step.

problem_builder/public/css/problem-builder-edit.css

 /* Display of url_name below content */
-.xblock[data-block-type=pb-mentoring-step] .url-name-footer,
-.xblock[data-block-type=pb-mentoring] .url-name-footer,
+.xblock[data-block-type=sb-step] .url-name-footer,
+.xblock[data-block-type=step-builder] .url-name-footer,
 .xblock[data-block-type=problem-builder] .url-name-footer,
 .xblock[data-block-type=mentoring] .url-name-footer {
   font-style: italic;
 }
 
-.xblock[data-block-type=pb-mentoring-step] .url-name-footer .url-name,
-.xblock[data-block-type=pb-mentoring] .url-name-footer .url-name,
+.xblock[data-block-type=sb-step] .url-name-footer .url-name,
+.xblock[data-block-type=step-builder] .url-name-footer .url-name,
 .xblock[data-block-type=problem-builder] .url-name-footer .url-name,
 .xblock[data-block-type=mentoring] .url-name-footer .url-name {
   margin: 0 10px;
@@ -15,8 +15,8 @@
 }
 
 /* Custom appearance for our "Add" buttons */
-.xblock[data-block-type=pb-mentoring-step] .add-xblock-component .new-component .new-component-type .add-xblock-component-button,
-.xblock[data-block-type=pb-mentoring] .add-xblock-component .new-component .new-component-type .add-xblock-component-button,
+.xblock[data-block-type=sb-step] .add-xblock-component .new-component .new-component-type .add-xblock-component-button,
+.xblock[data-block-type=step-builder] .add-xblock-component .new-component .new-component-type .add-xblock-component-button,
 .xblock[data-block-type=problem-builder] .add-xblock-component .new-component .new-component-type .add-xblock-component-button,
 .xblock[data-block-type=mentoring] .add-xblock-component .new-component .new-component-type .add-xblock-component-button {
   width: 200px;
@@ -24,10 +24,10 @@
   line-height: 30px;
 }
 
-.xblock[data-block-type=pb-mentoring-step] .add-xblock-component .new-component .new-component-type .add-xblock-component-button.disabled,
-.xblock[data-block-type=pb-mentoring-step] .add-xblock-component .new-component .new-component-type .add-xblock-component-button.disabled:hover,
-.xblock[data-block-type=pb-mentoring] .add-xblock-component .new-component .new-component-type .add-xblock-component-button.disabled,
-.xblock[data-block-type=pb-mentoring] .add-xblock-component .new-component .new-component-type .add-xblock-component-button.disabled:hover,
+.xblock[data-block-type=sb-step] .add-xblock-component .new-component .new-component-type .add-xblock-component-button.disabled,
+.xblock[data-block-type=sb-step] .add-xblock-component .new-component .new-component-type .add-xblock-component-button.disabled:hover,
+.xblock[data-block-type=step-builder] .add-xblock-component .new-component .new-component-type .add-xblock-component-button.disabled,
+.xblock[data-block-type=step-builder] .add-xblock-component .new-component .new-component-type .add-xblock-component-button.disabled:hover,
 .xblock[data-block-type=problem-builder] .add-xblock-component .new-component .new-component-type .add-xblock-component-button.disabled,
 .xblock[data-block-type=problem-builder] .add-xblock-component .new-component .new-component-type .add-xblock-component-button.disabled:hover,
 .xblock[data-block-type=mentoring] .add-xblock-component .new-component .new-component-type .add-xblock-component-button.disabled,
@@ -37,7 +37,7 @@
   cursor: default;
 }
 
-.xblock[data-block-type=pb-mentoring] .submission-message-help p,
+.xblock[data-block-type=step-builder] .submission-message-help p,
 .xblock[data-block-type=problem-builder] .submission-message-help p {
 	border-top: 1px solid #ddd;
 	font-size: 0.85em;

problem_builder/public/js/mentoring_with_steps.js

 function MentoringWithStepsBlock(runtime, element) {
 
     var steps = runtime.children(element).filter(
-        function(c) { return c.element.className.indexOf('pb-mentoring-step') > -1; }
+        function(c) { return c.element.className.indexOf('sb-step') > -1; }
     );
     var activeStep = $('.mentoring', element).data('active-step');
     var checkmark, submitDOM, nextDOM, tryAgainDOM, submitXHR;

problem_builder/step.py

@@ -79,7 +79,7 @@ class MentoringStepBlock(
     """
     CAPTION = _(u"Step")
     STUDIO_LABEL = _(u"Mentoring Step")
-    CATEGORY = 'pb-mentoring-step'
+    CATEGORY = 'sb-step'
 
     # Settings
     display_name = String(

problem_builder/templates/html/step.html

-<div class="pb-step">
+<div class="sb-step">
   {% if show_title %}
   <div class="title">
     <h3>

setup.py

@@ -41,8 +41,8 @@ def package_data(pkg, root_list):
 
 BLOCKS = [
     'problem-builder = problem_builder:MentoringBlock',
-    'pb-mentoring = problem_builder:MentoringWithExplicitStepsBlock',
-    'pb-mentoring-step = problem_builder:MentoringStepBlock',
+    'step-builder = problem_builder:MentoringWithExplicitStepsBlock',
+    'sb-step = problem_builder:MentoringStepBlock',
 
     'pb-table = problem_builder:MentoringTableBlock',
     'pb-column = problem_builder:MentoringTableColumn',