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cleanup and improve Time's nsec rounding #4522

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merged 7 commits into from Mar 13, 2017
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kares commented Mar 5, 2017

resolves #843

its still not the same as MRI (2.3.3) but it seems more correct e.g.

2.3.3 :006 > Time.utc(2013,6,30,14,56,14,263031.604).nsec
 => 263031603 
2.3.3 :007 > Time.utc(2013,6,30,14,56,14,263031.605).nsec
 => 263031604 

... while JRuby (after this change) :

irb(main):001:0> Time.utc(2013,6,30,14,56,14,263031.604).nsec
=> 263031604
irb(main):002:0> Time.utc(2013,6,30,14,56,14,263031.605).nsec
=> 263031605

irb(main):003:0> Time.utc(2013,6,30,14,56,14,263031.6053).nsec
=> 263031605
irb(main):004:0> Time.utc(2013,6,30,14,56,14,263031.6056).nsec
=> 263031606
kares added 7 commits Mar 5, 2017
resolves #843

its still not the same as MRI (2.3.3) but it seems more correct e.g.

```
2.3.3 :006 > Time.utc(2013,6,30,14,56,14,263031.604).nsec
 => 263031603 
2.3.3 :007 > Time.utc(2013,6,30,14,56,14,263031.605).nsec
 => 263031604 
```

... while JRuby (after this change) :

```
irb(main):001:0> Time.utc(2013,6,30,14,56,14,263031.604).nsec
=> 263031604
irb(main):002:0> Time.utc(2013,6,30,14,56,14,263031.605).nsec
=> 263031605

irb(main):003:0> Time.utc(2013,6,30,14,56,14,263031.6053).nsec
=> 263031605
irb(main):004:0> Time.utc(2013,6,30,14,56,14,263031.6056).nsec
=> 263031606
```
@kares kares merged commit a22b6a3 into jruby:master Mar 13, 2017
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@kares kares added this to the JRuby 9.1.9.0 milestone Mar 13, 2017
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