Merge pull request #145 from jeff1evesque/php_tests_index

#141: tests/php/index.php, close all 'option' tag elements
#106: README.md, define 'machine learning', 'support vector machines'
#106: README.md, minor space indentation
#106: README.md, add 'Applications for machine learning'
#106: README.md, minor list restructuring
Merge pull request #146 from jeff1evesque/doc_definition

#106: Documentation - Define 'Definition' Subsection
#26: README.md, Install 'scikit-learn' Submodule
Merge pull request #147 from jeff1evesque/doc_scikit_learn

#26: README.md, Install 'scikit-learn' Submodule
#148: README.md, Adjust 'Linux Packages' Subsection
Merge pull request #149 from jeff1evesque/doc_linux_packages

#148: README.md, Adjust 'Linux Packages' Subsection
#150: ajax_graphic.js, change 'bgColor', and 'opacity'
#150: form_svm.css, change 'loading.gif' size
Merge pull request #151 from jeff1evesque/svm_form

#150: Decrease 'loading.gif' and change backround
#153: html_form_ajax.js, remove unnecessary ajax 'console.log()'
Merge pull request #154 from jeff1evesque/js_html_form_ajax

#153: html_form_ajax.js, remove unnecessary ajax 'console.log()'
#155: logic_loader.php, create empty 'json' array