Version 2.2.2 - Fix batch

Changes:

• Network-related errors are now handled for every sub-command handler, it avoids rewriting try..except for each command handler. (#58).
• Added a "sync" attribute to 'VersionManifest' class to know if the data is in sync with online manifest (#59).

Fixes:

• The print_task function has been fixed to avoid printing a useless newline when using keep_previous=True with an empty previous line.
• It's possible again to launch local versions if no internet is available, this issue was a side effect of previous changes (#57).

Download and install:

To install PortableMC, please read this repository README, the single-file script is available below in the portablemc-single archive.