[Ecls-list] Latest fixes

[Juan Jose Garcia Ripoll]

* Preliminary changes towards implementing backquote, ",@" and "," as 
macros.

* Fixes in the compiler routines for CATCH to produce slimmer code.

* Fixes in the compiler for VALUES that solves some problems which arose 
when the output value is discarded.

* Fixes in the compiler for &optional and &key values. The 
initialization form of one of these variables can only reference the 
preceding variables, and not the variable it is going to initialize.

* The help from the configuration program has been rewritten using GNU 
styles and pretty printing routines.

* sockets.lisp has been rewritten to accomodate the differences between 
BSD and Linux systems.

* Vectors and arrays now share the same routine for printing. When 
*print-readably* is true, multidimensional arrays and vectors print the 
same, specifying the element type.

Regards,

Juanjo