Add new shell functions, including (help)
Add new shell functions, including (help)

bsmr-erlang/lfe,yurrriq/lfe,oubiwann/lfe,bsmr-erlang/lfe,arpunk/lfe,jjl/lfe,yurrriq/lfe,jjl/lfe,arpunk/lfe,oubiwann/lfe