set empty param status code to 403
add empty param check
reorg based on Doug review
handle error 404 by catching FileNOTFoundException
add try catch and fix indentation
Merge pull request #52 from bsvensson/empty-params-check

Checking for empty parameters
Enable redirects in PHP proxy, Fixes #47
Detects and decodes encoded characters in URI and POST, Fixes #21
Make version 5.3 - 5.4.1 a warning, not fail also elseif fixes

Made a few "else if" to be "elseif".  Trying to create better habbits.
http://www.php.net/manual/en/control-structures.elseif.php
fixed missing curly bracket
Merge pull request #56 from phpmaps/enable-redirects

Enable redirects in PHP proxy, Fixes #47
Merge pull request #57 from phpmaps/detect-decode-character-encoding

Detect decode character encoding, Fixes #21
Merge pull request #54 from esoekianto/handle-404-error

handle error 404 by catching FileNOTFoundException
Merge pull request #58 from phpmaps/prerequisites-checker-relax-version-check

Prerequisites checker relax version check, Fixes #31
Merge branch 'master' of https://github.com/Esri/resource-proxy