Merge pull request #183 from bhamail/test-getFieldOrder

Test Structure.getFieldOrder()

All Structure warnings are solved, so I'm going to commit this.

BTW, I saw something odd ("has unknown size" error) when instantiating an empty Structure (one with no instance fields). Please see the @todo comments in com.sun.jna.StructureFieldOrderInspectorTest.java. Restore the test: testCheckMethodGetFieldOrderStaticFieldOnlyStatic() to reproduce the behavior.
allow platform project to compile on non-windows jvm.
Merge pull request #186 from bhamail/master

fix platform project compile on linux