Improved catalog and minor fixes

• Improved entity resolution in Catalog class
• Added XInclude to XML catalog

Fixed conversion of PO files

• Fixed conversion of PO files

Returned to synchronized classes in XML package

• Returned to synchronized classes in XML package
• Minor improvement in repetition analysis

Improved support for Trados Studio packages

• Improved support for Trados Studio packages

Implemented support for Trados Studio packages

• Implemented support for Trados Studio packages

Code cleanup and segmentation changes for XLIFF 2.0

• Major code cleanup
• Changed segmentation model for XLIFF 2.0

Added support for WPML XLIFF files

• Added support for WPML XLIFF files

Improved segmenter performance

• Improved segmenter performance

Catalog fixes

• Fixed catalog on Windows
• Separated server from handler

Improved DITA support

• Improved support for empty <xref/> elements in DITA
• Improved support for XML catalogs