Skip test_priv01.py on Windows since it is Unix specific
add call to super
Don't try to set and clear session->split_gen in WT_INTL_FOREACH_BEGIN: there are too many of those loops to ensure that none of them skip clearing it.  Instead, make sure all calls are wrapped in WT_WITH_APAGE_INDEX.

refs SERVER-16546
Set split-gen when deepening the tree, add paranoia that the eviction server doesn't keep split-gen pinned.
Merge pull request #1494 from markbenvenuto/win_test_priv01_skip

Skip test_priv01.py on Windows since it is Unix specific
Merge pull request #1496 from wiredtiger/server-16546

Don't try to set and clear session->split_gen in WT_INTL_FOREACH
Don't try to write leaves from the sweep server.  Previously, this was done without locking the handle, and so could race with LSM discarding a handle.

We know the handle has been idle, so there is a good chance that a checkpoint has run since the last update and the write leaves was wasted effort.  If not, this change will keep the handle locked for longer preventing new opens, but it has been idle for a while anyway.

refs #1495, #1497 (maybe)
Merge pull request #1499 from wiredtiger/sweep-no-write-leaves

Don't try to write leaves from the sweep server