added \timing command to display duration of query in ms
added use of configuration file .fdbsqlclirc, which is run with every new fdbsqlcli call
added update on configuration file, ignore ; in backslash commands, and updated help output
Updates after comments of Nathan
Processed comments of nathan on V2
merge SytzeH: Updates features on sql-layer-client-tools v2

Merge pull request #49 from SytzeH/sql-layer-client-tools/cltools_ft
https://github.com/FoundationDB/sql-layer-client-tools/pull/49