[PATCH] git-svn: bug fixes (some resends)

[PATCH 1/5] git-svn: t0000: add -f flag to checkout
[PATCH 2/5] git-svn: fix handling of filenames with embedded '@'
	These two are resends, patch 2 only affects 1.1.0-pre.

[PATCH 3/5] git-svn: eol_cp corner-case fixes
	Kinda urgent (but only affects 1.1.0-pre)

[PATCH 4/5] git-svn: restore original LC_ALL setting (or unset) for commit
	For people that want to commit UTF-8 commit messages.

[PATCH 5/5] git-svn: don't allow commit if svn tree is not current
	Extra sanity check, just in case.