fixed bug 897700 - replaces undefined libexec var with bash function
(no bug) - ignore installed packages when bootstrapping dev libraries
(no bug) - ensure bootstrap bails when anything errors out
(no bug) - make test-webapp an alias for webapp-django make target (builds + tests)
(no bug) - assure that the virtualenv is sourced if it is present when building webapp-django
(no bug) - bump py-bcrypt to 0.3
(no bug) - clean up phony targets and document test-webapp alias target
Merge pull request #1364 from lonnen/897700-undefined-var

fixed bug 897700 - replaces undefined libexec var with bash function