Fixed Dependencymanager to handle dep file provider (as in config xml).
Added DbCon utility to manage a session scoped database connection.
Updated API design.
Specifically the Model::run() method definition to include query parameters.
Changed layout of API design doc.
Added <dbcon> section to sample-config.xml
Implemented parsing of database connection parameters/settings from configuration file.
Changed DbCon to net\zeddev\util namespace.
Fixed DbCon class.
Added DbConTest unit test for DbCon.