templates: use explicit named actions like "create user" instead of generic "save" which is bad UX.

rhodecode/templates/admin/repo_groups/repo_group_add.mako

@@ -74,7 +74,7 b''
             </div>
 
             <div class="buttons">
-              ${h.submit('save',_('Save'),class_="btn")}
+              ${h.submit('save',_('Create Repository Group'),class_="btn")}
             </div>
         </div>
     </div>

rhodecode/templates/admin/repos/repo_add_base.mako

@@ -94,7 +94,7 b''
             </div>
         </div>
         <div class="buttons">
-          ${h.submit('save',_('Save'),class_="btn")}
+          ${h.submit('save',_('Create Repository'),class_="btn")}
         </div>
     </div>
 </div>

rhodecode/templates/admin/user_groups/user_group_add.mako

@@ -56,7 +56,7 b''
              </div>
 
             <div class="buttons">
-              ${h.submit('save',_('Save'),class_="btn")}
+              ${h.submit('save',_('Create User Group'),class_="btn")}
             </div>
         </div>
     </div>

rhodecode/templates/admin/users/user_add.mako

@@ -125,7 +125,7 b''
              </div>
 
             <div class="buttons">
-              ${h.submit('save',_('Save'),class_="btn")}
+              ${h.submit('save',_('Create User'),class_="btn")}
             </div>
         </div>
     </div>