Add ui to create new custom project roles and column restrictions

app/Template/project_role/remove.php

@@ -0,0 +1,14 @@
+<div class="page-header">
+    <h2><?= t('Remove a custom role') ?></h2>
+</div>
+
+<div class="confirm">
+    <p class="alert alert-info">
+        <?= t('Do you really want to remove this custom role: "%s"? All people assigned to this role will become project member.', $role['role']) ?>
+    </p>
+
+    <div class="form-actions">
+        <?= $this->url->link(t('Yes'), 'ProjectRoleController', 'remove', array('project_id' => $project['id'], 'role_id' => $role['role_id']), true, 'btn btn-red') ?>
+        <?= t('or') ?> <?= $this->url->link(t('cancel'), 'ProjectRoleController', 'show', array('project_id' => $project['id']), false, 'close-popover') ?>
+    </div>
+</div>