Merge pull request #100 from jeff1evesque/php_logic_loader

#98: logic_loader.php, resolve ajax PHP Parse error
#104: README.md, Define 'GIT Submodule' Subsection
#104: README.md, Remove duplicate subsection title
Merge pull request #107 from jeff1evesque/doc_git_submodule

#104: Define 'GIT Submodule' Subsection #104
#103: README.md, Define 'GIT' Subsection
Merge pull request #108 from jeff1evesque/doc_git

#103: Define 'GIT' Subsection
#105: README.md, Define 'File Permission' Subsection
Merge pull request #109 from jeff1evesque/doc_file_permission

#105: README.md, Define 'File Permission' Subsection
#110: README.md, Add 'Note' to 'Installation' Subsection
Merge pull request #111 from jeff1evesque/doc_installation

#110: Add 'Note' to 'Installation' Subsection
#101: html_form_ajax.js, remove bad scoping of 'var', and change msg
Merge pull request #112 from jeff1evesque/js_html_form_ajax

#101: html_form_ajax.js, remove bad scoping of 'var', and change msg
#113: html_form_ajax.js, replace ajax callbacks with jQuery equivalent
Merge pull request #114 from jeff1evesque/js_html_form_ajax

#113: html_form_ajax.js, replace ajax callbacks with jQuery equivalent
#115: add ajax_loader.js
#115: add loading.gif
#115: form_svm.css, define style for '.ajax_loader'
#115: tests/php/index.php, add reference to 'ajax_loader.js'
#115: html_form_ajax.js, remove 'this' 'ajaxLoader()' param
#115: ajax_loader.js, remove options / class override