DOCS-1980, DOCS-1934, DOCS-1935, DOCS-1936: new user and role features

Signed-off-by: Sam Kleinman <samk@10gen.com>
edits on user defined roles reference documents: DOCS-1980, DOCS-1934, DOCS-1935, DOCS-1936
Minor: typo fix

Signed-off-by: Sam Kleinman <samk@10gen.com>
some changes

changes

Signed-off-by: Sam Kleinman <samk@10gen.com>
vulnerability report edits
DOCS-2106 ldap sasl auth
fix duplicate project project
link fix

Signed-off-by: Sam Kleinman <samk@10gen.com>
fixes to links

Signed-off-by: Sam Kleinman <samk@10gen.com>
Introduction to mongodb in Getting Started section created
What is a record paragraph done
edit of the records/documents section and a little shuffle
tweak first paragraph
work on install guides
more progress on the osx installation guide.
getting-started: in-progress draft of install-mongodb-on-os-x
getting started -- fix typo in the working draft for install-osx
getting started working draft for install
getting started tweak heading
minor: gitignore cleanup