- create AutoLoad env in system profile
- check for invoking .OptRequireMethods/.First/.First.sys/.Last
- remove handler-based setting of R options and align initial settings with GnuR
- create dummy .so files for utils and methods
- add -R:Rdebug option to allow debugging system profile functions

Added support for converting connections to integers as well support for "showConnections" and "getAllConnections" functions.