Sync CrashReport.h from TortoiseSVN

Based on TortoiseSVN revision 25895

Signed-off-by: Sup Yut Sum <ch3cooli@gmail.com>
Use a full path to load the crash handler dll to avoid loading a wrong one or even using an already loaded one with the same name

Based on TortoiseSVN revision 26009

Signed-off-by: Sup Yut Sum <ch3cooli@gmail.com>