Reynir-correct

* Changed repo and project name from ReynirCorrect to GreynirCorrect
* Added Python type annotations to GreynirCorrect API; now passes `mypy` check
* Added `pattern.py` for grammatical pattern detection, such as *leita af e-u*
* Added documentation, in the `doc` directory
* Changed license from GNU GPLv3 to MIT
* Many other updates and improvements

* Added ``correct`` command line tool for token-level correction, documented in ``README.rst``
* Lots of additional spelling and grammar checking functionality
* Dependency on ``reynir`` version 2.2.0
* Python 3.4 is no longer supported

* Annotations now include suggested corrections of noun phrases in incorrect cases with impersonal verbs or with prepositions. For instance, *Páli langaði í ís* is annotated with a suggestion that *Páli* (dative) should be *Pál* (accusative).
* Updated dependency on `reynir` to version 1.8.0.

* Added check for capitalization of month names (very often wrong from AutoCorrect in Microsoft Word)
* Added check for number (singular vs. plural) mismatch between sentence subject and main verb
* Better support for rich annotation texts
* Many smaller improvements in spelling and grammar checks

Many improvements and bug fixes in spelling and grammar checkers. Sentences that are probably in foreign languages are now detected and only annotated as such. Fixed GitHub URLs to point to ``mideind`` instead of ``vthorsteinsson``.

Much better support for detecting verb objects in an incorrect case. Added dependency on `icegrams` for better spelling correction and word probability estimation.