i18n-de: Translations and fixes until line 6000; more annotations

i18n-de: New translations, mostly largefiles extension

phases: do not exchange secret changesets Any secret changesets will be excluded from pull and push. Phase data are properly synchronized on pull and push if a changeset is seen as secret locally but is non-secret remote side. This patch does not handle the case of a changeset secret on remote but known locally.

phases: test the new-commit option and proper inheritence of phase

cygwin: add cygwin specific normcase logic in cygwin environment, mount point part of path is treated as case sensitive, even though underlying NTFS is case insensitive. this patch preserves mount point part of specified path, only if it is absolute one. there is no easy way to get list of current mount points from python program, other than to execute "mount" external command, because cygwin does not store current mount points into Unix/Linux like /etc/XXXtab file. so, this patch introduces cygwinmountpoints variable to list mount points to be preserved case. this allows some other extensions to customize mount point configuration.

icasefs: avoid path-absoluteness/existance check in util.fspath() for efficiency 'dirstate._normalize()', the only caller of 'util.fspath()', has already confirmed exsistance of specified file as relative to root. so, this patch omits path-absoluteness/existance check from 'util.fspath()'.

icasefs: retry directory scan once for already invalidated cache some hg operation (e.g.: qpush) create new files after first dirstate.walk()-ing, and it invalidates _fspathcache for fspath(). then, fspath() will fail to look up specified name in _fspathcache. this causes case preservation breaking, because parts of already normcase()-ed path are used as result at that time. in this case, file creation and writing out should be done before fspath() invocation, so the second invocation of os.listdir() has not so much impact on runtime performance.