topics: add a new flag --age which will show last touched time for topics This adds a new flag `--age` to `hg topic` command which will show topics sorted by their last touched time and will also show the last touched time for them. This patch also adds a simple test to make sure the flag does not breaks by future changes. Adding more tests showing output like "3 hours ago", "2 minutes ago" etc will change as the code takes time.time() into account which will increase with time, and hence the output will change, so we need some static output like a date.

uncommit: expose the feature with a '--extract' to amend The name of the "uncommit" feature have been an ongoing issue, but no better name have been found in the past year. We try another approach by exposing the 'uncommit' feature directly in `hg amend`. The command will not be able to do both operation a the same time (add new change to the commit + extract should change, but this is already the case with the two command today.

uncommit: add support for -U and -D

uncommit: add support for --user and --date This is also long overdue

uncommit: add support for --message and --logfile This is long overdue.

amend: drop the implementation details from the user help This is not relevant to users.

uncommit: move to the 'evocommands' module We are about to play around with a UI mixing amend and uncommit, we take advantage of this to split the __init__.py module a bit more.

amend: extract into a 'evolve.evocommands' module We are about to play around with a UI mixing amend and uncommit, we take advantage of this to split the __init__.py module a bit more.