Csvmatch

* Updates dependencies

* Updates dependencies, fixing Python 3.8 compatibility
* Other minor fixes

* Ignore parameter names are now more consistent (old names still work for now)
* Parameter to ignore order of letters
* Ignoring non-alphanumeric also ignores spaces now
* Levenshtein should be faster on Unicode text now
* Hopefully faster naive comparisons (ignores)
* Upgraded dependencies
* More tests
* Removed Python 2 support!

* Fixes multi-field comparisons -- it's now only a match if all fields pass the threshold, rather than if any did
* Allow multiple algorithms and multiple thresholds to be specified, which are interpreted respective to the specified fields
* Prevents error messages when piping output
* Updated dependencies

* Updated degree help text
* Better encoding detection
* Better encoding errors
* Add common installation problems to readme

* Intelligently handle files with Windows-style newline characters
* Remove requirement of needing to be installed with `sudo`