removed trailing spaces and tabs from source and text

This commit ignores the “contrib” folder in order to prevent merge conflicts in dependencies, should these be updated via git.

test/unit/utVersion.cpp

@@ -55,7 +55,7 @@ TEST_F( utVersion, aiGetLegalStringTest ) {
 TEST_F( utVersion, aiGetVersionMinorTest ) {
     EXPECT_EQ( aiGetVersionMinor(), 0U );
 }
-    
+
 TEST_F( utVersion, aiGetVersionMajorTest ) {
     EXPECT_EQ( aiGetVersionMajor(), 5U );
 }