added missing properties files to debian package
corrected backslash to slash in arbiter-wrapper
Merge pull request #1722 from lassewesth/arbiterdebianpackage

fixing debian package with usual properties files
Faster initial population of label scan store.

Improve write performance by refreshing the lucene searcher less often.
Refreshing less often is possible if writes are ordered so that we never
need to read our own writes during a single batch of writes. We consider
initial population as one very large batch.

A new facade LabelScanWriter expresses the batching of writes, replacing
LabelScanStore#updateAndCommit. It also mirrors the way we use LabelScanReader.
moved tests from functionaltest folder to test folder, so they get a chance to be run on the build
also commented out tests that simply do not work. will fix up later.
Merge pull request #1724 from apcj/populate-label-scan-store

Faster initial population of label scan store.