Fix for node dropping.
#110: Each node separate saving disabled.
Changes for #110:
 - Globalization updated.
 - Unused function removed.
 - isDeleted property added to node view model.
 - Save / Cancel buttons added to Edit and Add New Page dialogs.
 - Sitemap saving function calling added.
#118: css updated.
#110: sitemap editing refactored.
#110: node ordering fixed after custom link adding.