* Reverted path changes. Removed additional files in php petstore-security-test folder. Generated new samples.
* Batch and Shell scripts modified to use the same specification files for sample generation. Sample files generated.
* Input file path in PHP client batch file equalized with the input path in the shell script file. Samples generated.
* Added a missing bracket in the PHP client mustache template.
* AbstractPhpCodegen apiDocPath and modelDocPath creation adjusted to always use slash instead of system seperator, since the values will just be used in Markdown files.
* Unnecessary samples removed.
* Fixed unnecessary diversions between Windows and Linux/Mac paths in PHP codegen.
* New samples generated after rebase.
* Fixed a sample in TypeScript Angular v2 which caused CI to break.
