It iterates on all transactions until the specified date

closes #1139

Stefano Zacchiroli authored May 09, 2013 and Romain Bignon committed May 10, 2013

rationale: empty lines between entries do not seem to be supported by
the spec
http://web.archive.org/web/20100222214101/http://web.intuit.com/support/quicken/docs/d_qif.html
and I have found at least one application reading QIF that works properly
without the blank lines, and fail to work with the blank lines

also: most QIF files generated by other apps in the wild seem not to have
any empty lines between entries

This is recommended by Debian.
closes #618

close #898

Pierre Mazière authored Apr 18, 2012 and Romain Bignon committed Apr 18, 2012

Signed-off-by: Pierre Mazière <pierre.maziere@gmail.com>

I used autopep8 on some files and did carefully check the changes.
I ignored E501,E302,E231,E225,E222,E221,E241,E203 in my search, and at
least E501 on any autopep8 run.

Other style fixes not related to PEP8:
* Only use new-style classes. I don't think the usage of old-style
  classes was voluntary. Old-style classes are removed in Python 3.
* Convert an if/else to a one-liner in mediawiki, change docstring style
  change to a comment something that wasn't really appropriate for a
  docstring.
* Unneeded first if condition in meteofrance

Signed-off-by: Romain Bignon <romain@peerfuse.org>