Added link for ajax call on trip show page:

-Re-worked _loc_posts to get links working in correct order
- Indented location_pin#show
Removed before_action validate user method:

- Changed show_markers logic back to working state
Changed ajax query around to be used as a function:

- Autoloads map markers on trip#show
- Uses self-clicking link on document ready to do so
Merge pull request #97 from nealfennimore/features/views_trips

Features/views trips
Merge pull request #98 from nealfennimore/chores/load_pins.js

Changed ajax query around to be used as a function: