script_path bash function makes script execution more resilient
w.r.t. determining the dir in which a script is located (vs. the path
from which it was invoked)
Shen REPL launched w/ shen.clj script should have its *home-directory*
set to the dir from which the REPL was launched
bump to 0.1.11-SNAPSHOT
Merge tag '0.1.11-SNAPSHOT' into stable

version 0.1.11-SNAPSHOT
Merge branch 'stable' into gh-pages
rebuild docts