Simple replacements of SequenceBuilder with ArrayList
Conflicts:
	source/ceylon/build/tasks/ceylon/model.ceylon
Iterable.skipping() has been renamed to skip()
ValueDeclaration has been changed
Changed declaration of Package.annotatedMembers() as described here:
https://github.com/ceylon/ceylon.language/issues/389
changed SequenceBuilder to ArrayList in phasesDependencies()
changed SequenceBuilder to ArrayList in
GoalDefinitionsBuilder.definitionsMap()
Modified path test so it runs on Windows
use Iterable.sequence() as  Iterable.sequence doesn't exist anymore
Merge branch 'declarative-syntax' into ceylon-plugin
Simple replacements of SequenceBuilder with ArrayList
use Iterable.sequence() as  Iterable.sequence doesn't exist anymore
automatic formatting of imports