Print errors to cerr instead of cout.
Initialize Mem*Spec members to 0.
Fixed clang compilation warning/error.
Changed error message in fromString to prevent problems with gcc 4.6.3
Changed error message in fromString to prevent compilation errors on gcc 4.6.3.
Pass const references to prevent needless copying.
Removed default CommandAnalysis constructor.

The interaction with the traceparser class is still funky. Might need more refactoring.
Removed unused header and reduced scope of #define
Restore cout flags after changing them
const references instead of copies
[#16] Use stl sorting function in CommandAnalysis.
[#16] Removed unused function definition.