Fix project settings, enable AfterBuild setting without expection a specific shell
Fix Project settings for Release
Fix usage of NSImage - object cannot be reused after setting Size
NSImage does the caching for us anyway
Fix project settings - proper definition of Release and Debug settings
Merge branch 'config_nightly' of https://github.com/markusstoll/SparkleShare into config_nightly

* 'config_nightly' of https://github.com/markusstoll/SparkleShare:
  Fix usage of NSImage - object cannot be reused after setting Size NSImage does the caching for us anyway
  Fix Project settings for Release
copy NSImage as it will be changed using SetSize
Merge pull request #1589 from markusstoll/config_nightly

Config for nightly builds