Cosmetic changes for most files

Fixed setting of runtime in BrookPlatform() constructor (constructor w/o args):
if 'brt_runtime' env variable not set, then
internal 'runtime' variable was NULL -- this led to a fault when _setBrookRuntime() was called

platforms/brook/src/BrookPlatform.cpp

@@ -219,6 +219,12 @@ BrookPlatform::BrookPlatform( ){
    char* runtime     = getenv( "brt_runtime" );
 #endif
 
+   // if environment variable brt_runtime not set, default to cal
+
+   if( runtime == NULL ){
+      runtime = _strdup( "cal" );
+   }
+
    _initializeKernelFactory( );
    _setBrookRuntime( runtime );
 

platforms/brook/src/BrookVerletDynamics.cpp

@@ -53,9 +53,9 @@ BrookVerletDynamics::BrookVerletDynamics( ){
 
    //static const std::string methodName      = "BrookVerletDynamics::BrookVerletDynamics";
 
-   BrookOpenMMFloat zero                    = (BrookOpenMMFloat)  0.0;
-   BrookOpenMMFloat one                     = (BrookOpenMMFloat)  1.0;
-   BrookOpenMMFloat oneMinus                = (BrookOpenMMFloat) -1.0;
+   BrookOpenMMFloat zero                    = static_cast<BrookOpenMMFloat>(  0.0 );
+   BrookOpenMMFloat one                     = static_cast<BrookOpenMMFloat>(  1.0 );
+   BrookOpenMMFloat oneMinus                = static_cast<BrookOpenMMFloat>( -1.0 );
 
 // ---------------------------------------------------------------------------------------