adds priority to cpt and taxonomy register functions

this is a temporary fix until @pmgarman proposes a better fix. without this, the post types and taxonomies never get registered
Merge pull request #21 from jazzsequence/patch-1

adds priority to cpt and taxonomy register functions
Increase our priority for CPT and Taxonomy register hooks, so we can still hook in before with priority. See: https://github.com/WebDevStudios/wd_s/pull/21
Merge pull request #22 from bradp/master

Increase our priority for CPT and Taxonomy register hooks
README.md doc changes + fixes + improvements
Merge pull request #24 from bradp/docs

README.md doc changes + fixes + improvements
Update Plugin Submodules
Break up admin class into admin options and required plugins classes.
use filter w/ new class instead