Removed unneeded CSS classes

Part of #764

editions/tw5.com/tiddlers/Features.tid

@@ -5,7 +5,7 @@ title: Features
 type: text/vnd.tiddlywiki
 
 \define alert-demo()
-<$fieldmangler tiddler="SampleAlert"><$set name="currentTiddler" value="SampleAlert"><$button message="tw-add-tag" param="$:/tags/Alert" class="btn btn-inverse">alerts</$button></$set></$fieldmangler>
+<$fieldmangler tiddler="SampleAlert"><$set name="currentTiddler" value="SampleAlert"><$button message="tw-add-tag" param="$:/tags/Alert">alerts</$button></$set></$fieldmangler>
 \end
 * The ability to save changes on almost any desktop HTML5 compatible-browser, with custom apps to enable [[Saving on iPad/iPhone]] and [[Android|Saving on Android]], and a cross-platform [[Firefox extension|Saving with TiddlyFox]] that even runs on Android
 * Support for pluggable themes and colour palettes (see the [[control panel|$:/ControlPanel]])
@@ -15,7 +15,7 @@ type: text/vnd.tiddlywiki
 * Integrated [[AES encryption|Saving with Encryption]]
 * TiddlyWiki isn't just a wiki - you can build custom applications with it like this TaskManagementExample
 * Full internationalization support, with TiddlyWiki itself available in several languages (see the [[control panel|$:/ControlPanel]])
-* Familiar user interface elements like <<alert-demo>>, <$button message="tw-modal" param="SampleWizard" class="btn btn-inverse">wizards</$button> and <$button message="tw-notify" param="SampleNotification" class="btn btn-inverse">notifications</$button>
+* Familiar user interface elements like <<alert-demo>>, <$button message="tw-modal" param="SampleWizard">wizards</$button> and <$button message="tw-notify" param="SampleNotification">notifications</$button>
 * Easily [[import|ImportTiddlers]] content via drag and drop, copy and paste, or browsing for local files
 * Clone existing tiddlers (for example, <$button message="tw-new-tiddler" param=<<currentTiddler>>>clone this tiddler</$button>)
 * TiddlyWiki is [[surprisingly scalable|Scalability]] to many thousands of tiddlers and megabytes of content

editions/tw5.com/tiddlers/mechanisms/AlertMechanism.tid

@@ -6,7 +6,7 @@ type: text/vnd.tiddlywiki
 
 Alerts are displayed as yellow boxes overlaying the main TiddlyWiki window. Each one corresponds to a tiddler with the tag [[$:/tags/Alert]]. Clicking the delete icon on an alert deletes the corresponding tiddler.
 
-Here's a demo <$fieldmangler tiddler="SampleAlert"><$set name="currentTiddler" value="SampleAlert"><$button message="tw-add-tag" param="$:/tags/Alert" class="btn btn-inverse">alert</$button></$set></$fieldmangler>.
+Here's a demo <$fieldmangler tiddler="SampleAlert"><$set name="currentTiddler" value="SampleAlert"><$button message="tw-add-tag" param="$:/tags/Alert">alert</$button></$set></$fieldmangler>.
 
 Alert tiddlers should have the following fields:
 

editions/tw5.com/tiddlers/samples/SampleWizard.tid

@@ -1,10 +1,10 @@
 title: SampleWizard
 tags: demo
 subtitle: I'm a modal wizard
-footer: <$button message="tw-close-tiddler" class="btn btn-primary">Close</$button>
+footer: <$button message="tw-close-tiddler">Close</$button>
 
 This is a modal wizard dialogue, stored in the tiddler SampleWizard.
 
 {{Motovun Jack.jpg}}
 
-You can <$button message="tw-modal" param="SampleWizard2" class="btn btn-inverse">nest wizards</$button>.
+You can <$button message="tw-modal" param="SampleWizard2">nest wizards</$button>.

editions/tw5.com/tiddlers/samples/SampleWizard2.tid

@@ -1,8 +1,8 @@
 title: SampleWizard2
 tags: demo
 subtitle: I'm another modal wizard
-footer: <$button message="tw-close-tiddler" class="btn btn-primary">Close</$button>
+footer: <$button message="tw-close-tiddler">Close</$button>
 
 This is another modal wizard dialogue, stored in the tiddler SampleWizard2.
 
-You can <$button message="tw-modal" param="SampleWizard" class="btn btn-inverse">nest wizards</$button>.
+You can <$button message="tw-modal" param="SampleWizard">nest wizards</$button>.