Fix Linux paths to detect installed location

[1337joe]

The line immediately above the line where the logger is initialized (properties = current.loadAppProperties();) can cause logging to occur. With logger not initialized this throws a NPE, but this happens in a static initializer and causes the class to not load, producing a NoClassDefFoundError instead of a more helpful stack trace.

As evidenced by the missing path.properties, when installing the application from the AUR the application paths don't resolve as the code expected.

Changes:

• Fix order of initialization/use of logger
• Change method of finding app directory for linux
• Update linux external tool paths

As far as I've experienced the bug, this fixes #380 for Linux. I suspect the getAppPath() changes I made for Linux could be applied to other platforms but without a way to test that I wasn't going to commit that change.

[yermak]

@1337joe , thank you for patch.
I don't have Linux atm, need to install VM to test it.
First part regarding logging is no longer relevant, I need to rest Linux path detection.

[asm0dey]

@1337joe it seems we're on the same page with a delay of exactly a year :)

@yermak do you need any assistance in fixing the issue?