various fixes and changes
! Backup: fixed check in __eventFileRead
+ Backup: added in termination check for push async method
@ Backup: incresed download chunk size to 4MB (easier on server and more efficient)
+ Backup: added/enabled file truncation and file write for pull operations
! Client: fixed bug in FileRead method
! Server: fixed bug in FileRead command
- Server: removed cProfile code at startup