Cleanup for julia 1.0

[randyzwitch]

Cleans up package for Julia 1.0 and updates the YAML file with the parsing regexes.

As written, the tests do not completely pass:

parse_device: 121/22 (99.2%)
parse_os: 1068/1128 (94.7%)
parse_os2: 92/92 (100%)
parse_ua: 164/165 (99.4%)
parse_ua2: 972/972 (100%)

I'm comfortable with this level of accuracy; when I originally wrote this code, it was near impossible to trace how the python library was moving through these one-off test failures, so I manually edited the test files to make the tests pass. That said, I'd be more comfortable just publishing these accuracy statistics, as close enough is far better than not being able to parse user-agents at all.

My next commit will be to update the test files, which adds a lot more tests. Will post those metrics here as well.

I'd love to get feedback from anyone else who might be concerned about what the move forward should be. WIth 1000's of tests, I'm not that invested on making the parser code better or changing the tests to get marginal accuracy gains.

[randyzwitch]

Updated the test files (which also removed some of the old ones):

parse_device: 15144/16017 (94.6%)
parse_os: 1517/1528 (99.3%)
parse_ua: 204/205 (99.5%)

Again, I'm still comfortable with this accuracy. My plan is to remove the test macro from the individual tests, but rather do my own counting and then test that level of accuracy. This way, the CI tests will capture whether or not any future changes has decreased the accuracy of the parser from its current level, rather than fail for not having 100% parser accuracy.

[codecov-io]

Codecov Report

❗ No coverage uploaded for pull request base (master@13073b8). Click here to learn what that means.
The diff coverage is 85.71%.

@@            Coverage Diff            @@
##             master      #14   +/-   ##
=========================================
  Coverage          ?   57.48%           
=========================================
  Files             ?        1           
  Lines             ?      127           
  Branches          ?        0           
=========================================
  Hits              ?       73           
  Misses            ?       54           
  Partials          ?        0

Impacted Files	Coverage Δ
src/UAParser.jl	57.48% <85.71%> (ø)

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