Merge pull request #215 from krakjoe/master

Cleanup after libicu initialization
Merge pull request #216 from krakjoe/master

icu work
Recurrence removed on the environment copy
Merge remote-tracking branch 'origin/master'
- Fixed crash when an error is triggered on resolver
Merge remote branch 'upstream/master'
- Drop unneeded nesting
Merge remote-tracking branch 'origin/master'
Recurrence removed on the environment copy[leak removed]
cleanup libicu rename UnicodeString to UString