Opentaxforms

- Simplify form extraction from PDF [by perimosocordiae].
- cmds: add a 'divide' command.
- cmds: treat constant as 'enter' command on field with 'realunit' of 'ratio'.
- cmds: temporary: treat ratio field pair [integer and decimal fields] as dollars and cents fields.
- form: temporary: suppress the math for checkbox fields.
- Form: bugfix: fix 'multiple repeats' regex error via ut.compactify.
- improve Form naming, including bugfix in main.indicateProgress.
- bugfixes for py3 compatibility:
- Form: remove unicode calls.
- config: exception not iterable.
- link: seek bytes, not string.
- linting: remove re-import.
- ut: set log level of root logger.
- bugfix: constant [pre-filled] field converted to cents.
- bugfix: restored absolute positioning in transition from background image to img element.
- refs: add 'section' to nonformcontexts.
- refs: add schedulecontext for more accurate refs to schedules.
- refs: add inSameFamily rule for assigning schedules to forms.
- refs: suppress unicode punctuation characters in variables later used for filename.
- Re-enable test_1040_xfa

- add py35 testenv to tox setup.
- Simplify form extraction from PDF [by perimosocordiae].
- Make sure os is imported before use [by perimosocordiae].
- Many minor tweaks [by perimosocordiae].
- Merge branch 'avoid-dumppdf' of git://github.com/perimosocordiae/opentaxforms into perimosocordiae-avoid-dumppdf
- Merge branch 'minor-tweaks' of git://github.com/perimosocordiae/opentaxforms into perimosocordiae-minor-tweaks
- README henceforth will be created .before. final commit of each release.

- port to python3--thanks perimosocordiae! [by perimosocordiae]
- windows port: if symlinking fails, copy files instead.
- windows port: replace slashes in file paths w/ calls to os.path.join.
- test: removed xfa test because it currently fails due to seemingly unimportant unicode differences
- test: reorder tests from simplest to more complex.
- bugfix: logging: replace basicConfig with handlers, which are replaceable between tests, so each test gets its own log file.
- bugfix: os.path.join ignores any directories before a leading slash.
- bugfix: unsetup even after api tests so subsequent ('steps') tests can configure.
- bugfix: Fixing YAML syntax--travis doesnt like leading tabs [by perimosocordiae].

- install pdf2svg in travis before_script step.

- test: add non-warning lines from log file to output [convenient to know what went wrong with the travis build; helpful for new users too].
- 2 patches from meetup.com/pug-ip sprint on 13feb2017:
- dependency in README,README.md [by polera--thanks James!].
- bugfix in ut.run [by perimosocordiae--thanks CJ!].

- start port to windows.