Implemented custom nginx config file path.
Deleted 2 useless nginx config files.
Updated haproxy config in nginx doc to fix image localization issue.
Simplified the haproxy nginx regexps in nginx doc file.
Removed *. from the js and resources regexps in nginx_generator.
Implemented generate production nginx config file on local machine.
Implemented computing nginx additional projects paths when provided in build.json.
Updated documentation with production example and specific http error messages.
Updated unit tests.
Modified create_nginx_conf to get params from build.json and updated U.T.
Updated create_nginx_conf documentation.
Splitted long lines according to code review.
Small adjustments to nginx documentation.
Merge pull request #90 from rainjs/topic-nginx-enhancements

Topic nginx enhancements