Merge branch 'bd/tests'

* bd/tests:
  Rename the test trash directory to contain spaces.
  Fix tests breaking when checkout path contains shell metacharacters
  Don't use the 'export NAME=value' in the test scripts.
  lib-git-svn.sh: Fix quoting issues with paths containing shell metacharacters
  test-lib.sh: Fix some missing path quoting
  Use test_set_editor in t9001-send-email.sh
  test-lib.sh: Add a test_set_editor function to safely set $VISUAL
  git-send-email.perl: Handle shell metacharacters in $EDITOR properly
  config.c: Escape backslashes in section names properly
  git-rebase.sh: Fix --merge --abort failures when path contains whitespace

Conflicts:

	t/t9115-git-svn-dcommit-funky-renames.sh

config.c

@@ -698,7 +698,7 @@ static int store_write_section(int fd, const char* key)
 	if (dot) {
 		strbuf_addf(&sb, "[%.*s \"", (int)(dot - key), key);
 		for (i = dot - key + 1; i < store.baselen; i++) {
-			if (key[i] == '"')
+			if (key[i] == '"' || key[i] == '\\')
 				strbuf_addch(&sb, '\\');
 			strbuf_addch(&sb, key[i]);
 		}