daemon: Unimplemented testcases removed
ibrcommon: Use readdir_r for File::getFiles()
daemon: Move initialization of sqlite-specific BLOB provider to the SQLiteBundleStorage class
daemon: Add SQLiteBundleStorage to the BundleStorage unit tests
daemon: Execute remove bundle directly in SQLiteBundleStorage
daemon: Catch possible exception in SQLiteDatabase
daemon: Implement SQLiteDatabase::getDistinctDestinations()
daemon: Implement BundleStorage::remove(Bloomfilter&) as generic function
daemon: Fix double store issue with SQLiteBundleStorage

This fix required some bigger structure changes within the database scheme.
The size() check is still unimplemented and by-passed in the unittests.
daemon: Improvements for NodeHandshake class