SERVER-13645 move SyncTail class into its own header and cpp file

Conflicts:
	src/mongo/db/repl/rs_sync.cpp
SERVER-13645 move InitialSync class into its own header and cpp file
SERVER-13645 move HeartbeatInfo class into its own header and cpp file
SERVER-13084 btree navigation should use new impl
SERVER-13563 Add old package names to RPM Provides and Conflicts

This is two changes for every package and sub-package of both
community and enterprise:
1) Add the equivalent old package name to each package's Provides
field
2) Add the equivalent old package name to each apckage's Conflicts
field.

Tested scenarios that should work:
* Upgrading from 2.4.10 (Vs. uninstalling then installing)
* Installing sub-packages with new name
* Installing sub-packages with old name
* Installing metapackage with new name
* Installing metapackage with old name
* Installing old versions of packages using new --exclude
  mongodb-org,mongodb-org-server syntax
* Installing third party package that depends on old package name
  (new packages were automatically installed)

(cherry picked from commit 5337c7e3f43a9c25347b18442d83aea6fe608ed7)
SERVER-1120 OpenBSD Port

This patch should enable building on OpenBSD 5.4.

- added a processinfo implementation based heavily off of the same
  code for freebsd.
- fixed a few scons problems in mongo and v8
- added __openbsd__ directives to s2 build
- Don't disturb bswap() functions on freebsd.
- Fixed indentation sloppiness. No code changes.

Signed-off-by: Mark Benvenuto <mark.benvenuto@mongodb.com>
SERVER-13638: remove friend access to NamespaceDetails from record store impls
SERVER-13638: record stores don't call DiskLoc::writing
SERVER-13638: RecordStore uses smaller ExtentManager api
Merge remote-tracking branch 'upstream/master'