flags: add mongoc_remove_flags_t for naming uniformity.
build: incremental build work on topic based doc system.
build: add man and html targets.
git: ignore html build directory.
build: add note about old automake
doc: reset formatting after table indent.
doc: put synopsis in own section.
doc: set title on description section.
doc: remove use of <em> in this context
doc: more docs for socket.
docs: add note about forwardable/addressless tickets with kerberos.

This was found while testing Solaris 10 on a VM and solved the login
issue at hand. Worth sharing with others.
doc: add a section for tailable cursors.
doc: add stubs for GridFS howto.
doc: work on installation from binary release for solaris.
doc: more work on installation docs.
doc: determine host architecture from solaris install doc.
doc: more work on installation docs.
doc: move installing page. remove some confusing links.
docs: add screen example for forwardable kerberos tickets.
doc: remove redhat section until we have YUM repo.