Revert 745b3f9..bd8d6cf

This rolls back to commit 745b3f95ac5971d6d72cef2b4bf6bb7e85542bca.
Update to Shiny 10.2
Updated miniCRAN setup
Remove the githubMC dir to limit package size
Merge branch 'master' into dev
Revert "Merge branch 'master' into dev"

This reverts commit 8236812ed8b38f6058688d6bd7d8abbc59cb2552, reversing
changes made to bd8d6cfd8ceb9dce2ca34194fb153219835d73a4.
Adding new miniCRAN structure to the dev branches