revsingle: fix silly API issue (issue2992)

Added signature for changeset f0d7721d7322

Added tag 2.7-rc for changeset f0d7721d7322

i18n-it: do not translate rst syntax ".. container::" and ".. note::" are rst syntax and therefore must not be translated.

convert: handle changeset sorting errors without traceback (issue3961)

ancestor.deepest: ignore ninteresting while building result (issue3984) ninteresting indicates the number of non-zero elements in the interesting array, not the number of elements in the final list. Since elements in interesting can stand for more than one gca, limiting the number of results to ninteresting is an error. Tests for issue3984 are included.

ancestor.deepest: decrement ninteresting correctly (issue3984) The invariant this code tries to hold is that ninteresting is the number of non-zero elements in the interesting array. interesting[nsp] is incremented at the same time as interesting[sp] is decremented. So if interesting[nsp] was previously 0, ninteresting shouldn't be decremented.

ancestor.deepest: sort revs in C version This isn't strictly necessary, but it makes the code more consistent with the Python version.

check-code: add a check for the next() builtin, which was new in 2.6

mq: rename next() to nextpatch() to avoid confusing a future check-code patch next() is a builtin starting in 2.6, so it's also nice to avoid shadowing the builtin.