• added a possible solution to the manage tags dialog next/previous buttons crash
• completely overhauled temporary file management throughout client and server
• removed old temp folder
• copy files to clipboard will now copy the database's exact file paths (rather than copying to a temp folder beforehand), making it a lot quicker
• the import folders daemon will no longer attempt to import (and hence spam errors about) zero-length files
• added one-time tag archive sync button to the 'perform a service-wide operation' dialog in review services. this lets you add or delete the archive's tags by namespace
• revised the tag archive sync code a little so it syncs to non-local files as well, if the hashes can be lined up
• added hash cross-referencing to archive sync code before maina processing step, often saving a huge amount of time
• fixed a parsing error with advanced content updates at the gui-end
• added GetName and IterateHashes to hydrus tag archives
• added default 'similar to' max hamming distance to file system predicate defaults in client options
• fixed up the default text display of the file service system predicate
• added some text to the sort/collect options panel to better explain what the big listbox is for
• fixed a popup numerical typo when uploading files to a repository
• fixed an utterly bizarre bug caused by the import files dialog that was screwing up subsequent dialogs' layout and size, apparently by wx voodoo
• refactored all the functions and classes of hydrusconstants to better locations
• misc other refactorisation
• misc cleaning
• renamed hydrusdownloading to clientdownloading
• changed all default { } and [ ] parameters to None. I don't think it mattered, but just in case for the future
• moved some ugly global variable stuff to better places, hoping to do more in future
• cleaned up many unused imports