Stable enough to be called version 1.0.0

• Replaced deprecated fs.existsSync() call by fs.accessSync(). fs.existsSync() was deprecated since Node.js v1.0.0.
• Updated mocha and should dependencies
• Proven stable enough to be finally called version 1.0.0

More unit tests

• Fixed devDependencies in package.json to contain version numbers
• Added unit test for app-config reload feature in 0.1.2

Improved unit testability

• Configuration files are now reloaded if app-config module is deleted from require.cache and then required again. This is useful for unit tests when need to reload the config files after making any changes to config object.
• Replaced Node's assert module in unit tests by should

Error and warning printing

• Always print an error when terminating the app due to a critical error
• Print a warning if the configuration directory is empty

Initial release

Initial release with support for dynamic configuration loading