Add documentation on sending back a response within an HTTP listener
Add a toString to TextMessage so log messages are meaningful
Ex:
DEBUG Message '[object Object]' matched regex //^[@]?Hubot[:,]?\s*(?:PING$)/i/
becomes:
DEBUG Message 'hubot ping' matched regex //^[@]?Hubot[:,]?\s*(?:PING$)/i/
Add missing information about external scripts on docs/README
Fix version in CHANGELOG.md

This change is at v2.7.5 not v.2.7.4.
Merge pull request #695 from dblandin/http-listener-response-doc

Add documentation on sending back a response within an HTTP listener
Merge pull request #696 from pulseenergy/master

Add a toString to TextMessage so log messages are meaningful
Merge pull request #697 from thiagogabriel/readme-npm-scripts

Add missing information about external scripts on docs/README
Merge pull request #703 from tricknotes/fix-version

Fix version in CHANGELOG.md
Script google-images will now only add #.png to url if it doesn't end with an image extension
Merge pull request #708 from softarn/master

Removed #.png ending to image urls if image file ending already exists
Fix help command replaces prefix twice
Merge pull request #712 from ngs/fix-help-script

Fix help command replaces prefix twice
Add bootstrap and release scripts.
Add smoke-test.

This script is simple: it merely performs a syntax error
test on the .coffee files in src and src's subdirs.
Add script/cibuild

This runs the tests.
Remove `test` task from Makefile.
Push new tag when pushing commits to `master`.
Ensure there is a line in the changelog before releasing.
Move test script back to Makefile.
Add support for --config-check for checking that the scripts are working