#134 Debug messages printing at INFO log level

[Chase Barrett]

Approximately 50% of the time on Mac/OSX, I'll get the following INFO messages in the console:

INFO|616/0|17-06-27 20:16:05|[INFO] StandardFileSystemManager - Using "/var/folders/9c/4gts5nhx4sv2395cqkzs5m1r0000gn/T/vfs_cache" as temporary files store.
INFO|616/0|17-06-27 20:16:05|in_-1308318448065411410$1498616164446: Channel not open for writing - cannot extend file to required size
INFO|616/0|17-06-27 20:16:05|in_-1308318448065411410$1498616164446: Channel not open for writing - cannot extend file to required size
INFO|616/0|17-06-27 20:16:05|in_-1308318448065411410$1498616164446: Channel not open for writing - cannot extend file to required size

They do not seem to impact functionality at all, but they do cause clients to ask questions about why there are apparent errors showing up in their logs.

I came across this discussion thread which identified these lines as debug statements. If they are debug, they should be assigned to the DEBUG log level and suppressed by default.