Use named constant instead of magic number
Merge pull request #3 from bs2609/fixes

Use named constant instead of magic number
Merge remote-tracking branch 'origin/fixes'
Merge branch 'master' of https://github.com/bs2609/fs2
Small improvements to concurrent share handling
Fix a small resource leak when writing file lists
Make share constructor try to handle exceptions
Remove unnecessary throws from functions
Tiny change to use a set instead of conditionals
Correct heap memory usage display
Use local variable instead of chained method call
Remove another magic number
Merge remote-tracking branch 'origin/master' into share-refresher
Merge fixes into branch