added parallel_proofs flag (default true, cf. usedir option -Q), which can be disabled in low-memory situations;
This directory contains a PGIP configuration file "pgip_isar.xml"
which can be used to configure the behaviour of PGIP-aware interfaces
communicating in PGIP with Isabelle. The current version of this file
is incomplete and experimental, because interfaces that use it are
still in development.
Note that Isabelle does not do anything with the configurations
specified here, it simply passes the file directly on to the interface
during startup inside an XML message.
The file which is sent can be overridden at run time by setting the
variable ISABELLE_PGIPCONFIG to point to an alternative location.
The file here is valid wrt to the RELAX compact schema in "pgip.rnc".
See http://proofgeneral.inf.ed.ac.uk/kit for more details of the
Proof General Kit project.
-- David Aspinall, Sep 2005.