Restore BDD mockito checkstyle rules

Author: philwebb

src/checkstyle/checkstyle.xml

@@ -26,5 +26,12 @@
 				value="Please use specialized AssertJ assertThat*Exception method." />
 			<property name="ignoreComments" value="true" />
 		</module>
+ 		<module name="com.puppycrawl.tools.checkstyle.checks.regexp.RegexpSinglelineJavaCheck">
+ 			<property name="maximum" value="0"/>
+			<property name="format" value="org\.mockito\.Mockito\.(when|doThrow|doAnswer)" />
+			<property name="message"
+				value="Please use BDDMockito imports." />
+			<property name="ignoreComments" value="true" />
+		</module>
 	</module>
 </module>