[*] Updated declarations for DocMLET-1.0.4

Signed-off-by: Stephan Wahlbrink <sw@wahlbrink.eu>
[Tex-Model] Fixed equality methods for EmbeddedRef

Signed-off-by: Stephan Wahlbrink <sw@wahlbrink.eu>
[Tex-Editor] Added support for persistent code folding (see LTK)

Signed-off-by: Stephan Wahlbrink <sw@wahlbrink.eu>
[*] Adapted to refactoring in LTK

Signed-off-by: Stephan Wahlbrink <sw@wahlbrink.eu>
[*] Updated build configuration
  - Updated to Tycho-0.17

Signed-off-by: Stephan Wahlbrink <sw@wahlbrink.eu>