migrate to netstandard2.0

3.0.0

migrate to netstandard2.0

v2.5.0

.Net 4.0 supported, create strong-name assembly

v2.4.1

remove "async void" pattern, tests for throw inner exceptions

v2.4.0

fix file monitoring via FileSystemWatcher

v2.3.0

review file monitoring
variables in configuration file
specify search path from main configuration directory

v2.2.0

bumpimg version

v1.1

add icon, update version

v1.0.1

NuGet publication