Fix .subheader CSS. (#407)

* Fix subheader CSS. Allows growing when 'api_managed_roster' is true and additional text is visible.

* Bump version.

Author: tbrockman

src/oncall/__init__.py

@@ -1 +1 @@
-__version__ = '2.0.1'
+__version__ = "2.0.2"

src/oncall/ui/static/css/oncall.css

@@ -289,7 +289,7 @@ nav.subnav li.active {
 
 .subheader {
   padding: 20px;
-  height: 110px;
+  min-height: 110px;
   color: #fff;
 }