Replaced the windows constant with a util method
Removed handling for a bug in an unsupported version php (5.2)
Replaced the temp directory constant with a util method
Replaced the helperappsdir constant with a util method
Removed the PHP_INT_MIN constant
Replaced some global constants for modules with class constants
Merge pull request #35 from JamesHeinrich/use-class-constants

Replace global constants with utils methods/class constants