updated to version 1.7 of mongo driver
Merge branch 'master' of git://github.com/mamluka/NLog.MongoDB

Conflicts:
	packages/FluentAssertions.1.7.1.1/Lib/sl40/System.Xml.Linq.xml
	packages/FluentAssertions.1.7.1.1/Lib/sl40/System.Xml.Serialization.xml
	packages/FluentAssertions.2.0.0.1/lib/sl4-windowsphone71/FluentAssertions.WindowsPhone.xml
	packages/FluentAssertions.2.0.0.1/lib/sl4/FluentAssertions.Silverlight.xml
	packages/FluentAssertions.2.0.0.1/lib/winrt45/FluentAssertions.xml
Remove packages folder.