upload-replay-bug

@dhopkins-va 
Updated sc2reader lib from master branch.
Version decreased from 0.6.5 to 0.6.4 but contains bug fixes not found on newer library.

Conrad & Blair were unable to upload their replay and after testing locally I found the following error:
```
UnicodeDecodeError: 'utf8' codec can't decode byte 0x9a in position 0: invalid start byte
```
After updating to the sc2reader on their master branch I do not receive the error and was able to upload both their replay and an older one.