removing relative permalinks set to false after github jekyll version upgrade to 2.0
updating pygments configuration option to highlighter after renaming in jekyll 2.0
leveraging collections to generate band member pages. removed data_to_page.rb and _data/band.yml as they're no longer needed. added _band dir to hold markdown files for each band member. each markdown file contains variables for all information necessary to render bandmember page. modified bandmember.html to use the new variables stored in the individual band member markdown files. also updated the band list page to reference band member collection variables instead of data variables - closes #4