ICU-20119 Merge pull request #162 from pedberg-icu/cldr34a-integration

ICU-20119 Integrate CLDR release-34-alpha2, adjust code & test, update MeasureUnit

diff --cc icu4c/source/test/intltest/numbertest_api.cpp
Simple merge

diff --cc icu4c/source/test/intltest/numbertest_range.cpp
Simple merge

diff --cc icu4j/main/classes/core/src/com/ibm/icu/number/NumberRangeFormatterImpl.java
Simple merge

diff --cc icu4j/main/tests/core/src/com/ibm/icu/dev/test/number/NumberFormatterApiTest.java
Simple merge

diff --cc icu4j/main/tests/core/src/com/ibm/icu/dev/test/number/NumberRangeFormatterTest.java
Simple merge