Feature/load otp data

I think there's a case to be made for /usr/local/share, as it is intended for static data. [Here's the FHS spec on /usr/share](http://refspecs.linuxfoundation.org/FHS_2.3/fhs-2.3.html#USRSHAREARCHITECTUREINDEPENDENTDATA). However, since the data changes occasionally, the application's static files are in /opt/, and since there are some files used in the creation of the graph cached in this folder, I'll use [/var/opt/](http://refspecs.linuxfoundation.org/FHS_2.3/fhs-2.3.html#VAROPTVARIABLEDATAFOROPT)otp.