Add and update syntax coloring definitions

- add: Apache (v1.1), Markdown (v1.0.2) , Scala (v1.0), XML (v1.1)
- update: PHP (v2.2), Python (v2.0.1)
Update credits
Add new syntax files to the project
Merge pull request #2 from 1024jp/update-syntaxdefinitions

Update default syntax definitions

Conflicts:
	CotEditor.xcodeproj/project.pbxproj
add syntax coloring