Create a thread to do automatic checkpoints.
Merge pull request #464 from wiredtiger/autockpt

Create a thread to do automatic checkpoints.
Take care shutting down the checkpoint thread: we have to do that before btree handles are closed.
Improvements for the Java API documentation: create a Java API module, link to class documentation and wiredtiger_open documentation.
Search the default FreeBSD path when configuring for Java.
The macro `AC_CHECK_CLASS' is obsolete.
Merge branch 'develop' of github.com:wiredtiger/wiredtiger into develop

Conflicts:
	dist/s_docs
Merge branch 'develop' into statistics

Conflicts:
	src/config/config_def.c
	test/format/wts.c
Run more of the wiredtiger_open calls by closing previously opened handles.
Change it so that statistics_log configures statistics as well.