Remove global node, npm, and less dependencies

This removes the dependencies on system wide node, npm and lessc
binaries in order to compile the main website. Instead, local copies are
installed in the build/node and node_modules/ sub-directories.
Add a build/bin script

This runs the required autotools commands in order to setup the website.
Merge branch 'tmp/heroku-build'
Format build/bin output

This transforms:

    Running make
    Making all in resources
    make[1]: Entering directory `/home/chris/src/pip-db/resources'
    Making all in css
    make[2]: Entering directory
    `/home/chris/src/pip-db/resources/css'

into:

    ------> Running make
            Making all in resources
            make[1]: Entering directory `/home/chris/src/pip-db/resources'
            Making all in css
            make[2]: Entering directory `/home/chris/src/pip-db/resources/css'
Bump release version for '0.2.1'
Merge branch 'release/0.2.1'