Move source files to the src folder.
- Added a few things to the ignore file.
- Updated composer file.
- Added phpunut.xml and updated how to run unit test.
- Changed readme format to Mark-Down.
- Adapt unit test to run with PHP Unit XML configuration.
- Refactored unit test code.
- Refactored Simga API test into a Sigam namespace.
- Added Bug unit test to Sigma namespace.
- Moved unite test to test\sigma namespace, and moved Cache unite test to the unit test namespace.
- Moved usage unit test to test namespace.
- Moved Sigma into sigma namespce.
- Removed AllTest.php.
- Removed inheritence of PEAR from Sigma class.
- Added path for OS_WINDOWS constant from PEAR.
- Replaced PEAR raise error with exceptions.
- Updated composer JSON.
- Updated composer JSON.
- Updated readme, and change composer JSON.
- Capitalized vendor folder name.