Don't try to set TLS options if there is no default account

Ignore-this: f05fbd44397986ffa74a4df0a13b8cbc

darcs-hash:20140616083523-56b4d-e702a28db9f2bc593c74fc1e384e3cb12a88cc18
Increased the connect timeout for external screen sharing handlers

Ignore-this: d5a48a1456d3c589ea7cbe67816b2706

darcs-hash:20140625135742-b22ec-e72d8e732651cc4dd852af4f46ff6ffd06ff645e