post 2.5.5

Conflicts:
	src/mongo/util/version.cpp
SERVER-12509 allow overriding default buildlog URL with command line opt to smoke.py
turn on autoresync to fix smalloplog suite timing out
SERVER-12346 Detect dash for ulimit parameter in .deb init script

Conflicts:
	debian/init.d
Revert "add mongoadmin to gitignore"

This reverts commit 359f4cbfeacd9a952fb785ad469cad06eb6e8fcc.
BUMP 2.6.0-rc0

Conflicts:
	rpm/mongo.mdv.spec
	rpm/mongodb-enterprise-unstable.spec
	rpm/mongodb-enterprise.spec
	rpm/mongodb-org-unstable.spec
	rpm/mongodb-org.spec
	src/mongo/util/version.cpp