The subversion $Id$ fields made every commit force a rebuild of
whatever file got committed. They were not actually useful for
telling the version of Tor files in the wild.
svn:r17867
Add new stacklike, free-all-at-once memory allocation strategy. Use it when parsing directory information. This helps parsing speed, and may well help fragmentation some too. hidden-service-related stuff still uses the old tokenizing strategies.
svn:r14194
