Add support for multiple files per call

Closes #2.
Add moonscript template
[QA] Start of a much needed refactoring sweep
Cleaner handling of temporary test files
Add tag in VCS support
Add shtool writing support to set subcommand
[QA] Use standard code, not code-block, directive
[Tr] Add test for default date handling
Merge branch 'f/unblend'

* f/unblend:
  Add shtool writing support to set subcommand
  Cleaner handling of temporary test files
  [QA] Start of a much needed refactoring sweep
Merge branch 'f/tag_release'

* f/tag_release:
  Add tag in VCS support

Conflicts:
	doc/usage.rst
	doc/versionah.1.rst
	versionah/cmdline.py
[Tr] Remove now unused requirements-base
[QA] Remove unused import