Added the ability to Delete records using a predicate. (cherry picked from commit edc429ac8e1f41a26857970230bdaeadb19c7b30)
Added the ability to Delete records using a predicate.
(cherry picked from commit edc429ac8e1f41a26857970230bdaeadb19c7b30)

Conflicts:
	tests/DeleteTest.cs
	tests/SQLite.Tests.csproj

caseydedore/SQLite.Net-PCL,molinch/SQLite.Net-PCL,kreuzhofer/SQLite.Net-PCL,igrali/SQLite.Net-PCL,mattleibow/SQLite.Net-PCL,oysteinkrog/SQLite.Net-PCL,TiendaNube/SQLite.Net-PCL,fernandovm/SQLite.Net-PCL,igrali/SQLite.Net-PCL