Merge branch 'stable'
Moving sdk_config.ini to samples folder and updating installation script / README.md
Updating installation instructions in README.md
Update composer.json
updated install script to fetch wildcard tag names
checking if the tag/branch exists before downloading
Merge pull request #5 from paypal/installscript103-php5.2

updated install script to fetch wildcard tag names
Update CHANGELOG.md
Update CHANGELOG.md
updated changelog and version for 103 release
Merge pull request #6 from paypal/rel-2.4.103

Rel 2.4.103