more tests for graph management
Merge branch 'devel' of https://github.com/triAGENS/ArangoDB into devel
Replaced legacy Foxx auth with new and shiny modular auth logic.
session.destroy -> session.delete.
Added authentication cookieSecret.
Formatting.
Adjust auth tests.
Added documentation stubs for auth.
Documented sessions app.
Split lines.
Removed 'Description' headers.
Subsections for model attributes.
Cleaned up session docs to match style.
Typo.
Fixed typo.
Documented users app.
Formatting.
Documented session configs.
Documented simple auth app.
Linting.