Course Management Update - v1.0.5

• Fixed a mis-placed parenthesis in templates/course/lesson-navigation.php related to outputting excerpt in navigation option
• Changed theme override template directory from /llms to /lifterlms
• Update the positiong & name of the "My Courses" Menu in BuddyPress Compatibility file
• New meta_key _parent_section added for easier connection and quicker queries.
• Section sorting on course syllabus
• Edit links added to course syllabus
• Assign section to course and view associated lessons metabox added to sections
• Assign lesson to section and view associated lessons metabox added to lessons
• Assigned Course, Assigned Section, Prerequisite and Membership Required added to lesson edit grid
• Assigned Course added to section edit grid'
• New membership setting: Restrict Entire Site by Membership Level (allows site restriction to everything but membership purchase and account).
• Updated template overriding to check child & parent themes
• Updated template overriding to apply filters to directories to check for overrides to allow themes and plugins to add their own directories
• minor css updates for better theme compatibility