ConfigLib

This update provides some minor performance improvements, and adds better const support including const iterators.

This update adds the ability to enumerate over
unswitched command line parameters, and fixes some
bugs in long command line switch handling.

This update adds a new class for reading an enumerable configuration option. The configenum class allows the creation of a collection of strings that map to a numeric index. This is useful as a shortcut for rapidly adding a configuration setting which allows a finite number of named options and manipulating them as numeric values or a C++ enumeration.

This update adds two new classes for reading a section of the configuration file: configmap which reads name/value pairs, and configvector, which reads unnamed values. There are also improvements in positioning new settings and handling Boolean variables.

The initial release of the project includes objects for reading and writing a configuration file setting, or a map of settings from a complete section. It also has objects for reading colors and IP addresses using a variety of common formats.