Handling newline characters in tags

[BrentonPoke]

Hopefully this is the last one I have to do to clean up #684. Another attempt was made at #702, but checkstyle made things...difficult.

[codecov-commenter]

Codecov Report

Merging #703 into master will increase coverage by 0.08%.
The diff coverage is 90.90%.

@@ Coverage Diff @@ ## master #703 +/- ## ============================================ + Coverage 59.09% 59.18% +0.08%  - Complexity 413 419 +6  ============================================ Files 69 70 +1 Lines 2540 2548 +8 Branches 268 270 +2 ============================================ + Hits 1501 1508 +7  Misses 972 972 - Partials 67 68 +1 

Impacted Files	Coverage Δ	Complexity Δ
src/main/java/org/influxdb/dto/BatchPoints.java	87.87% <75.00%> (-0.67%)	24.00 <0.00> (ø)
src/main/java/org/influxdb/dto/Point.java	92.56% <100.00%> (+0.03%)	52.00 <0.00> (ø)
...rc/main/java/org/influxdb/dto/utils/CheckTags.java	100.00% <100.00%> (ø)	6.00 <6.00> (?)

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[BrentonPoke]

@fmachado So how is this one? Good enough?