pathencode: simplify basicencode

test-hybridencode: in practice, extensions aren't really unbound in length due to the fact that we only get to encode files ending in .i and .d inside the store

Merge

histedit-test: clarify the reason of a failure There is multiple conflict during this test. This add a small comment that highligh the reason of a particular failure.

histedit-test: make test-fold more verbose This helps to check the validity of fold result and debug potential issue.

bookmarks: teach the -r option to use revsets

help: add example of paths other than default in hgrc

i18n-ja: synchronized with f36f11f2bfce

merge with stable

lock: fixed race condition in trylock/testlock (issue3506) Suppose the following scenario: 1. Process A takes the lock (e.g. on commit). 2. Process B wants to grab the lock. Since lock file exists the exception is raised. In the catch block the testlock function is called. 3. Process A releases the lock. 4. Process B tries to read the lock file as a part of testlock function. This results in OSError (ENOENT) and since we're not inside the exception handler function this is propagated and aborts the whole operation. To fix this we now check in testlock function whether lock file actually exists and if not (i.e. if readlock fails) we just return.