Started implementation of a YAML source formatter.
Replaced utility method for reading of file content with IOUtils method instead
Added support setting flow style and pretty flow.
Added support for different scalar styles.
Added missing test files.
Added info of which trace level is loaded.
Added editor support for formatting document.
Take into account setting for explicit start and end for empty documents.
Fixed format support for multiple documents in the same file.
Made empty document completely empty.
Merge branch 'add-yaml-formatter'

Conflicts:
	org.dadacoalition.yedit.test/src/org/dadacoalition/yedit/test/TestUtils.java
Updated version number to 1.0.14.