Fix rare PclZip/realpath/PHP version problem

In PHP 5.4.4 realpath() handles absolute paths correctly, but in PHP 5.3.8 returns false.
Ensure temp file in pclzipAddFile() removed

Make pclzipAddFile() similar to pclzipAddFromString() in removing
temporary files.
RTF Writer: Support for sections, margins, and borders #249
Section: Ability to set paper size, e.g. A4, A3, and Legal
QA: Type check fix for RTF section style and docblock comment fix for AbstractContainer
Autoloader Options

Add the ability to set the autoloader options.
Merge branch 'fix-rare-pclzip-realpath-php-version-issue' of github.com:andrew-kzoo/PHPWord into develop
Merge branch 'fix-rare-pclzip-temp-file-issue' of github.com:andrew-kzoo/PHPWord into develop
Merge branch 'develop' of github.com:bskrtich/PHPWord into develop
Update change log and adjust some coding standards for #261, #265, and #267
Refactor elements to move set relation Id from container to element