Upgrade core library version 0.82.1 -> 0.82.2
Merge pull request #847 from realm/ks-use-core-ver-0.82.2

Upgrade core library version 0.82.1 -> 0.82.2
create tableview on demand
make sure new tableview is attached
enum cleanup
fix for enumerator test
added test, fix for re-sorting
changelog
explicit query copy
Add better tests for querying RLMArrays from queries
disable failing test in XCode6
Merge pull request #839 from realm/al-lazy-query

Perform queries on demand
Bump version number
Don't materialize the TableView for a query just to get the count

Speeds up counting 100k items with a simple string equality query on a 4S from
108ms to 26ms, and presumably reduces memory usage somewhat.

Doing the same thing for aggregation functions doesn't appear to help at the
moment.