Fixed #54: Updated to most recent version of tomphp/patch-builder.

Thanks to @tomphp for fixing.
Break EditingSession down into individual editing action classes.
Merge pull request #48 from tomphp/refactor/editing-actions

Start breaking EditingSession down into EditingActions
Some tidying to the fix class names code
Merge branch 'refactor/fix-class-names-tidied-up' of github.com:tomphp/php-refactoring-browser into refactor/fix-class-names-tidied-up