Add delete this Page based on .com.

Match short sha commit message of .com for edit and delete.
Update tests.

lib/gollum/frontend/app.rb

@@ -125,7 +125,9 @@ module Precious
       wiki         = Gollum::Wiki.new(settings.gollum_path, wiki_options)
       page         = wiki.page(CGI.unescape(params[:page]))
       name         = params[:rename] || page.name
-      committer    = Gollum::Committer.new(wiki, commit_message)
+      msg          = commit_message
+      msg[:message]= msg[:message] + " [#{page.version_short}]"
+      committer    = Gollum::Committer.new(wiki, msg)
       commit       = {:committer => committer}
 
       update_wiki_page(wiki, page, params[:content], commit, name, params[:format])
@@ -139,6 +141,17 @@ module Precious
       redirect "/#{page.escaped_url_path}"
     end
 
+    get '/delete/*' do
+      @path        = extract_path(params[:splat].first)
+      @name        = extract_name(params[:splat].first).to_url
+      wiki_options = settings.wiki_options.merge({ :page_file_dir => @path })
+      wiki         = Gollum::Wiki.new(settings.gollum_path, wiki_options)
+      @page        = wiki.page(@name)
+      wiki.delete_page(@page, { :message => "Destroyed #{@name} (#{@page.format}) [#{@page.version_short}]" })
+
+      redirect '/'
+    end
+
     get '/create/*' do
       @path        = extract_path(params[:splat].first)
       @name        = extract_name(params[:splat].first).to_url
@@ -331,13 +344,13 @@ module Precious
       end
     end
 
-    def update_wiki_page(wiki, page, content, commit_message, name = nil, format = nil)
+    def update_wiki_page(wiki, page, content, commit, name = nil, format = nil)
       return if !page ||
         ((!content || page.raw_data == content) && page.format == format)
       name    ||= page.name
       format    = (format || page.format).to_sym
       content ||= page.raw_data
-      wiki.update_page(page, name, format, content.to_s, commit_message)
+      wiki.update_page(page, name, format, content.to_s, commit)
     end
 
     def commit_message

lib/gollum/frontend/public/gollum/javascript/gollum.js

@@ -1,5 +1,21 @@
 // ua
 $(document).ready(function() {
+  $('#delete-link').click( function(e) {
+    var ok = confirm($(this).data('confirm'));
+    if ( ok ) {
+      var href = window.location.href;
+      var index = href.lastIndexOf('/');
+      // /home
+      var page = href.substr(index);
+      // http://localhost:4567/
+      var host = href.substr(0, index+1);
+      var loc = host + 'delete' + page;
+      window.location = loc;
+    }
+    // Don't navigate on cancel.
+    e.preventDefault();
+  } );
+
   var nodeSelector = {
     node1: null,
     node2: null,

lib/gollum/frontend/templates/page.mustache

@@ -57,5 +57,8 @@
 </div>
 <div id="footer">
   <p id="last-edit">Last edited by <b>{{author}}</b>, {{date}}</p>
+  <p>
+    <a id="delete-link" href="{{escaped_url_path}}" data-confirm="Are you sure you want to delete this page?"><span>Delete this Page</span></a>
+  </p>
 </div>
 </div>

lib/gollum/page.rb

@@ -259,6 +259,13 @@ module Gollum
       end
     end
 
+    # Public: The first 7 characters of the current version.
+    #
+    # Returns the first 7 characters of the current version.
+   def version_short
+     version.to_s[0,7]
+   end
+
     # Public: The header Page.
     #
     # Returns the header Page or nil if none exists.