removes deprecated is_set func in src/install
adds functions to determine if tag/project is in config
fixes bug: settings flags to zero still adds them to config
use arrays instead of string lists in src/install
checking for tags/projects no longer requires unavailable dependacies
default recipe path is now .filename instead of just filename
use interactive cp if file exists when linking
correctly parse recipe for from/to/name entries using awk
add ctags dotfiles