Insulate scripts from user settings of IFS.
Install the Python module as part of "make install".
Make IFS more portable: don't export, set explicitly and move to where it is needed.
Another try at portably getting the IFS setting we need.
Update test/format max page configuration calculation to make it less likely
that we'll pin the entire cache and get stuck.
whitespace
Update is like insert, once an update is done, bulk-load is no
longer possible.

We were repeating the fixed-size value WT_ITEM size checks, it's
not a performance problem, but there's no reason to do it twice.
Document that setting LC_ALL=C is a good idea when pre-sorting keys for
bulk load.  Reference #590.
Fix a race manipulating file descriptors in the test suite.  Always close the connection before closing redirected stdout and stderr.  Make sure the connection and redirected files are both closed if a test fails.
Merge branch 'develop' into logging