Update pathfinder-neceros.html

Added total skills to bottom of skill sheet
added 1 extra craft, perform, and profession skill
moved concentration skills to spells per day sections
made CMD take dodge and deflection into account
Update pathfinder-neceros.html

added a source drop down for choosing where your armor check penalty is coming from
Update pathfinder-neceros.css

removed select box margins
Update pathfinder-neceros.html

added a drop down to select which ability modifier affects HP
Update pathfinder-neceros.html

added None option to HP stat
Update pathfinder-neceros.html

made attack and defense notes bigger
Update pathfinder-neceros.css
Update pathfinder-neceros.html

added styled checkboxes for show/hide sections
Update pathfinder-neceros.css
Update sheet.json
Merge pull request #267 from Thequietcroc/master

Various improvements and feature requests