Fix race condition when hashing a file that was already removed
Refactor Listen::DirectoryRecord#content_modified? to be simpler

* Remove some synthetic variables and move the checksum tracking
  into an ensure block.
Merge pull request #45 from dkubb/fix-digest-race-condition

Fix digest race condition
Version 0.4.6
Use lstat instead of stat when calculating mtime

Prevents an exception when getting the mtime of a broken symlink.
Update development / test gems
Increase default latency to 0.2 (0.1 before)
Merge pull request #41 from ebroder/broken-symlinks

Use lstat instead of stat when calculating mtime
Test with previous Guard linux event list

guard/guard#297
Add delete events to linux adapter
Increase default latency to 0.25 (0.1 before)
Remove useless comment [ci skip]
Randomize specs
Version 0.4.7 [ci skip]
Corrected grammer and spelling in feature list.
Merge pull request #49 from DougHall/patch-1

Corrected grammer and spelling in feature list.
Fixed typo
Merge pull request #52 from rothshahar/patch-1

Fixed typo
Replace FChange with WDM
Stop relying on luck when testing adapters

Adapters can now be set to not report changes until explicitly commanded
to. This allows waiting for the expected amount of changes in tests.