Start preparing for 2.5.1

Signed-off-by: Junio C Hamano <gitster@pobox.com>

Junio C Hamano committed Aug 19, 2015 at 14:26 UTC 552a736de775994570570a0514f24e32686afbe0
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Documentation/RelNotes/2.5.1.txt new
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1 +Git v2.5.1 Release Notes
2 +========================
3 +
4 +Fixes since v2.5
5 +----------------
6 +
7 + * Running an aliased command from a subdirectory when the .git thing
8 + in the working tree is a gitfile pointing elsewhere did not work.
9 +
10 + * Often a fast-import stream builds a new commit on top of the
11 + previous commit it built, and it often unconditionally emits a
12 + "from" command to specify the first parent, which can be omitted in
13 + such a case. This caused fast-import to forget the tree of the
14 + previous commit and then re-read it from scratch, which was
15 + inefficient. Optimize for this common case.
16 +
17 + * The "rev-parse --parseopt" mode parsed the option specification
18 + and the argument hint in a strange way to allow '=' and other
19 + special characters in the option name while forbidding them from
20 + the argument hint. This made it impossible to define an option
21 + like "--pair <key>=<value>" with "pair=key=value" specification,
22 + which instead would have defined a "--pair=key <value>" option.
23 +
24 + * A "rebase" replays changes of the local branch on top of something
25 + else, as such they are placed in stage #3 and referred to as
26 + "theirs", while the changes in the new base, typically a foreign
27 + work, are placed in stage #2 and referred to as "ours". Clarify
28 + the "checkout --ours/--theirs".
29 +
30 + * An experimental "untracked cache" feature used uname(2) in a
31 + slightly unportable way.
32 +
33 + * "sparse checkout" misbehaved for a path that is excluded from the
34 + checkout when switching between branches that differ at the path.
35 +
36 + * The low-level "git send-pack" did not honor 'user.signingkey'
37 + configuration variable when sending a signed-push.
38 +
39 + * An attempt to delete a ref by pushing into a repository whose HEAD
40 + symbolic reference points at an unborn branch that cannot be
41 + created due to ref D/F conflict (e.g. refs/heads/a/b exists, HEAD
42 + points at refs/heads/a) failed.
43 +
44 + * "git subtree" (in contrib/) depended on "git log" output to be
45 + stable, which was a no-no. Apply a workaround to force a
46 + particular date format.
47 +
48 +Also contains typofixes, documentation updates and trivial code
49 +clean-ups.
RelNotes
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1 -Documentation/RelNotes/2.5.0.txt
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1 +Documentation/RelNotes/2.5.1.txt
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