Merged Date into main Index
Missing index segments
Made LuceneSearch Non-disposable
Subtle change to the getter on totalhits
Proof of concept
Disposed of the directory objects
Following concept test on large ram dir - removed ram dir option
Merge branch 'filters-sp' of https://github.com/cardinal252/Lucinq into filters-sp

Conflicts:
	Lucinq/Interfaces/ILuceneExecutor.cs
	Lucinq/Querying/LuceneSearch.cs
	Unit Tests/Lucinq.UnitTests/IntegrationTests/DateFieldTests.cs
Add helper for date range filtering and update code