TMate SubGit 3.3.1 released (with many fixes and improvements)

[dm.l...@gmail.com]

SubGit 3.3.1 is a bugfix release. 

• Fixed out-of-memory error occurred on Git repositories with huge pack indexes. See more details at https://issues.tmatesoft.com/issue/SGT-1237.
  
• Fixed process handle leak on Windows.
  
• Fixed Java version check for JRE 10.
  
• Fixed potential repository corruption when working through file:// protocol on Linux when interacting with native Subversion is compiled to use FLOCK instead of POSIX locks. The problem happened when native Subversion commits changes to the SVN repository and SubGit translates Git commits to SVN revisions at the same time. See more details at https://issues.tmatesoft.com/issue/SVNKIT-719.
  
• Fixed false detection of external changes. In some cases when someone committed to SVN near the moment of creating new SVN revision by SubGit that lead to the message about potentially corrupted repository even if the repository was fine. See more details at https://issues.tmatesoft.com/issue/SGT-1230.
  
• Fixed “IllegalThreadStateException: process hasn’t exited” error. See more details at https://issues.tmatesoft.com/issue/SGT-1219.
  
• Better error message when pushing via SSH and user running SubGit can’t access the uploaded objects. The original error message was “Missing unknown OBJECT_ID”. See more details at https://issues.tmatesoft.com/issue/SGT-1231.
  
• When ‘shelves=’ option is not specified any “subgit install” command ran long unnecessary configuration validation that could last several hours on a large repository (even if such “subgit install” would be no-op). See more details at https://issues.tmatesoft.com/issue/SGT-1224.
  

Please note, that starting from this version, Java 1.8 or newer is required. If you haven't upgraded yet (which is unlikely) - please do.