Initial import
Added asciidoc file icon
Merge pull request #3 from neher/enhancement_1

Added asciidoc file icon
update readme
update instruction for building the plugin
add license file and reference from README
minor update to build instructions
resolves #2 recognize all AsciiDoc file extensions
replace styles with Asciidoctor theme, enable syntax highlighting

- add content div around result
- enable document title
- use coderay for syntax highlighting
- replace stylesheet with one inspired by Asciidoctor theme
- set safe mode
upgrade to Asciidoctor 0.1.4, remove unused libraries
rename Asciidoc to AsciiDoc