Merge pull request #3 from ryanplusplus/FixComparisonBetweenSignedAndUnsigned

Added explicit casts to allow for compilation under -pedantic
Updated Eclipse project file to include built-in GCC settings.  This helps Eclipse find std libs.
Merge pull request #309 from ryanplusplus/addEclipseBuiltInGccSettings

Add Eclipse CDT built-in gcc preprocessor include paths