Update Tom Chiverton entry

git-svn-id: https://svn.apache.org/repos/asf/flex/site/trunk@1626143 13f79535-47bb-0310-9956-ffa450edef68
Fix up Tom Chiverton photo height

git-svn-id: https://svn.apache.org/repos/asf/flex/site/trunk@1626145 13f79535-47bb-0310-9956-ffa450edef68
added max-height:200px to head shots

git-svn-id: https://svn.apache.org/repos/asf/flex/site/trunk@1626153 13f79535-47bb-0310-9956-ffa450edef68
added height:200px to head shots

git-svn-id: https://svn.apache.org/repos/asf/flex/site/trunk@1626156 13f79535-47bb-0310-9956-ffa450edef68