Update grunt-legacy-util to 0.2.0. Closes gh-971, gh-1129.
Test realpath cwd in file.isPathCwd and file.doesPathContain. Closes gh-1112.
Added grunt.task.exists method to check if a task exists. Closes gh-1131.
Add grunt.config.merge method to deep merge config data. See gh-1039.
Adding CHANGELOG changes for 0.4.5. Closes gh-1138.
Fix invalid YAML in CHANGELOG
Bumping version to 0.4.5.
Add appveyor.yml to npmignore

Thanks @XhmikosR