refactoring liquid to erb for students and institutions
Merge branch 'feature/directories' of github.com:praxisnetwork/praxisnetwork.github.com into feature/directories
Merge branch 'feature/directories' of github.com:praxisnetwork/praxisnetwork.github.com into feature/directories
edited introductory information for related programs page

added bio on praxis-program page.
Merge branch 'feature/directories' of github.com:praxisnetwork/praxisnetwork.github.com into feature/directories
Merge branch 'feature/directories' of github.com:praxisnetwork/praxisnetwork.github.com into feature/directories
updating text on index, institutions, and student pages