compatibility updates for asciidoctor

- use [[anchor]] macro instead of anchor:name[]
- asciidoctor-specific rendering options
- set path to icons and enable them

- also fix two invalid image references
BZ 908145 - quickstarts/hotrod-endpoint dones't stop RemoteCacheManager properly
Fix issue 409: Clarify instructions in CONTRIBUTING.md file
Rewrite quickstart to be a web app
Improved final name using variable
Add element IDs to deltaspike-helloworld-jms
Fix issue 467: typo in root README.md; s/nad/and
Fix issue 457: Update POM file with version updates made in EAP 6.1 quickstarts
Add URL to app to text, thanks to Perry Anderson
Auto format kitchensink
Corrected all Header files and Contributing guide
Fix whitespace issues reported by qstools
Fix additional whitespace issues reported by qstools
Fix tab character and white space issues in XML files reported by qstools
Fix all POM file errors reported by qstools EXCEPT for new BOM suggestions and non JBoss/JDF BOM reports