Revision 1770544

[tools] reenginering:
 - create a new CollectionTool ($collection) containing collection sorting and string splitting methods
 - make toLocale(Object) a public method of LocaleConfig
 - deprecate SortTool and ConversionTool (splitting goes to CollectionTool, number parsing is redundant with NumberTool, toLocale is now in LocaleConfig, date conversions are redundant with DateTool ones)