* [FIX] move language specific info to the wiki
The informations about Finnish and Japanese can be found in the [wiki](https://github.com/savoirfairelinux/num2words.wiki.git)
The goal of this commit is to keep the readme short.
* [FIX] add wiki mention in the readme.rst
FI: Add support for Finnish
This is a squash of the following commits :
* The recommendation by Kotus was optional. The code didn't work anyway
because million is 10**6, not 10**9, and the recommendation only applies
to round millions, billions and so on where the multiplier is 10 or
greater.
* FI: currency: use inheritance, add FIM and USD
* FI: add some common currencies
* FI: add inflections
* FI: inflections: small fixes
* FI: fix ordinal 200
* FI: fix comitative
* FI: actually fix ordinal 200
* FI: refactoring
* FI: fix tens
* FI: fix plural for tens and higher
* FI: toinen --> kahdes for numbers > 200
* FI: use collection for options
* FI: add tests
* FI: add minced tests
* FI: trim tests
* FI: finishing touches
* FI: improve cardinal_float, ordinal, add tests
* FI: add documentation to README.rst
* Create lang_CZ.py
* Added czech language to init .
* Update __init__.py
* Update lang_CZ.py
* Added translation to czech language
* Fixed thousands translation
* Added czech language to readme
* Changed pointword in czech translation.
* Create test_cz.py
* Fixed names for very big numbers.
* Fixed currency spelling.
* Created tests for czech language.
* Fixed: Shortened length of some long lines.
* Shortened one more line of code.
* Fixed tests
* Fixed flake-8.
* Changed name of the test class
* add Thai
* change splitby3 to splitbyx
* change lang_th to use function from currency
* make Num2Word_TH inherit from Num2Word_Base
* comment out test failed in 2.7 env
* fix python2.7 error
* add USD EUR for Thai
* pep8 fix
* added Thai
* Activate flake8, isort and coveralls in the configuration of tox
* Update code to respect PEP8
* Fix bug in the lang_IT for python 3
* Update the README to include the new converters.
