Sence the files are not updated very often and the format is not expected to change, no version info is tracked.
Downloaded files are loaded with the next login or current login is connection is fast enought.
*Do not use llsd-xml, use our new format
*Include constants and keywords in the script library, deprecate keywords.ini and remove parsing it
*Readd energy and sleep time values
*Minor bug fixes in llpreviewscript.cpp