Initial commit, initial enhancements ...

[nfreear]

...

• — initial commit;
• — convert Readme to Markdown, add copyright, license statement, acknowledgements etc.
• — fix line-breaks CRLF (win) to LF (*nix/ os x);
• — remove trailing ?> from PHP files;
• — maybe add composer.json, with php-lint, PSR-2 sniffing etc.?
• — .travis.yml
• — maybe switch to dotenv for configuration?
• — Google Analytics, bug Add Google Analytics #2;
• — web-root portability, bug Fix web-root & code portability #4;
• — accessibility fixes, bug Fix web-root & code portability #4;
• ...?

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