adds social media buttons, fixes layout of fields.

closes #13
closes #14
tweaks to permalink display
begins to reorganize code to better handle data sources with no stk
abstracts process of determining if stk is disabled
further abstracts features of getting values. fixes bugs
bugfix in determining ptk
abstracts more getters
dismisses permalink on interaction
ups limit of evergreen text to 500 characters. closes #30
cleans up documentation
renames a few functions
adds mobile support to sliders

closes #25
adds alternate view modes for the content types

There are still a few issues that need to be resolved, but there have
been issues opened for them. Specifically #34 and #35

Closes #29
tweaks site install scripts for #29