Fix loading of JNA with recent JCALL improvements.

From Olof.

git-svn-id: http://abcl.org/svn/trunk/abcl@14687 1c010e3e-69d0-11dd-93a8-456734b0d56f
THREADS:YIELD implements java.lang.Thread.yield().

Improved documenation strings in threads package.

git-svn-id: http://abcl.org/svn/trunk/abcl@14690 1c010e3e-69d0-11dd-93a8-456734b0d56f
PREPARE-FOR-WAR packages ASDF systems for deployment in WAR archives.

With archives packages under 'WEB-INF/resources', placing these jar
files in the 'WEB-INF/lib' directory enables the Java Servlet
ServletContext().getResourceAsStream() method to access their
contents.

git-svn-id: http://abcl.org/svn/trunk/abcl@14693 1c010e3e-69d0-11dd-93a8-456734b0d56f
Convert Lisp truth values to Java equivalents in JCALL/JSTATIC.

We now convert CL:T and CL:NIL to JAVA:+TRUE+ and JAVA:+FALSE+
respectively when invoking JVM methods through the JAVA package,
establishing the "natural" equivalence for boolean truth values.  This
may break some existing usage in that previously CL:NIL was converted
to a Java 'null' reference.  Users now need to specify JAVA:+NULL+
explicitly when desiring to pass 'null' Java references as an argument
in invoking JVM methods.

Addresses <http://abcl.org/trac/ticket/84> (#84) and
<http://abcl.org/trac/ticket/339> (#339).

git-svn-id: http://abcl.org/svn/trunk/abcl@14694 1c010e3e-69d0-11dd-93a8-456734b0d56f
Enable PACKAGE-FOR-WAR to work by reading the servlet spec and disabling WARN.

git-svn-id: http://abcl.org/svn/trunk/abcl@14695 1c010e3e-69d0-11dd-93a8-456734b0d56f
Patch the Maven locator code to probe "/usr/local/maven/lib/".

From a patch for OpenBSD provided by Timo Myyrä.

git-svn-id: http://abcl.org/svn/trunk/abcl@14696 1c010e3e-69d0-11dd-93a8-456734b0d56f
Note JFI boolean conversion in CHANGES.

git-svn-id: http://abcl.org/svn/trunk/abcl@14711 1c010e3e-69d0-11dd-93a8-456734b0d56f
Note availability of Windows specific SLIME instructions.

git-svn-id: http://abcl.org/svn/trunk/abcl@14712 1c010e3e-69d0-11dd-93a8-456734b0d56f
Update to ASDF 3.1.2.2 version.

git-svn-id: http://abcl.org/svn/trunk/abcl@14713 1c010e3e-69d0-11dd-93a8-456734b0d56f