PHP uninstall: Spelling
Function DoesWebPageExist implemented
Now checking for file existence and rewriting URL to archive on failure. Solves issue with archived PHP versions
Merge branch 'master' into php-checkoldversion

Conflicts:
	automatic/php/tools/chocolateyInstall.ps1
	automatic/php/tools/chocolateyUninstall.ps1
Merge pull request #24 from Nilzor/php-checkoldversion

Php checkoldversion