- merged with upstream changes
- small fixes to ch8 and ch6.5
added asciidoc.conf to support compatibility with asciidoc

https://github.com/asciidoctor/asciidoctor/blob/master/compat/asciidoc.conf
addressed most of the editor's comments for ch 8.
added bower and node sections
Merge pull request #97 from gAmUssA/master

fixes in tdd and tools chapter