- Fixed deprecated compiler warning

[revidee]

• Fixed issue ERROR com.github.ccob.bittrex4j.BittrexExchange - Failed to parse response #42 and made fillType optional

[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (develop@a486210). Click here to learn what that means.
The diff coverage is 50%.

@@            Coverage Diff            @@
##             develop     #44   +/-   ##
=========================================
  Coverage           ?   80.4%           
  Complexity         ?     262           
=========================================
  Files              ?      35           
  Lines              ?     837           
  Branches           ?      31           
=========================================
  Hits               ?     673           
  Misses             ?     148           
  Partials           ?      16

Impacted Files	Coverage Δ	Complexity Δ
...cob/bittrex4j/cloudflare/CloudFlareAuthorizer.java	48.05% <0%> (ø)	4 <0> (?)
.../main/java/com/github/ccob/bittrex4j/dao/Fill.java	80.76% <100%> (ø)	12 <4> (?)

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[CCob]

Excellent - thanks a lot, I'll get a SNAPSHOT build later which will include this PR