template: update successors template output Use templatekw._hybrid as return value for precursor template, it's nicer and easier to play with than returning a formatted string.

test: extract metaedit tests into test-metaedit.t test file The metaedit command deserver it own test file and this shave of 15% of the runtime of test-evolve.t one of our longest tests.

template: update precursors template output Use templatekw._hybrid as return value for precursor template, it's nicer and easier to play with than returning a formatted string.

template: skip "fate" in test output when empty This should clarify the test output a bit.

template: skip "successors" in test output when empty This should clarify the test output a bit.

template: make the template definition more manageable Readable config is readable

template: skip "Precursors" in test output when empty This should clarify the test output a bit.

template: move each template on its own line during tests This will clarify the various coming changes around template.

refactoring: rename obsfate template to obsfate_quiet As I don't know how to handle templates arguments, create different templates for each verbosity level wanted.

doc: add documentation about effectflag experiment

effectflag: split effect flag meta Split effect flag meta into 3 separate flags: - USERCHANGED - DATECHANGED - BRANCHCHANGED Also display them separately for the moment, they could be grouped back together if we want later.

tests: update missing amend (I need a hook)