Weekly release with new database modules

This weekly release features new database modules for dbm and sql.  Also,
the basic language features from Python are nearly complete.  See
http://prothon.org.

Version 0.0.5 - Build 387 - 4/18/04 - Weekly Release

 - Changed all method names to camelCase (from wide_names)
 - Added DBM module - Supports external gdbm, nbdm, Berkeley db, and
   has built-in sdbm for all platforms.  Uses APR dbm support.
 - Added SQLite module
 - Started OS module with system() call.
 - Added string % operator (sprintf)
 - Added list comprehensions to language
 - Added list.sort!() - List methods now complete.
 - Added Dict methods - Dict methods now complete.
 - New generation C macros for defining and checking method param types
 - Added test files: dbm.pr, dict.pr, listcomp.pr, sqlite.pr, strmod.pr,
   system-test.pr
 - Exceptions checked properly during module initialization now