Simplified buggy gcc-specific js exception handling code.
replaced catch(...) by JML_CATCH_ALL.
TcpClient: reorganised action callbacks
Merge branch 'master' into tcp-client-callbacks-reorg
TcpConnectionResult: gcc-4.6 compatible constructors
Merge branch 'master' into http-client-ih
HttpClient: adapted to new AsyncWriterSource and TcpClient callbacks convention