Revert "Somehow 'External components have proper types' test is broken"

This reverts commit f1d8d649a13f3fe76a215122fa9069d95513c8f4.
Revert "DateInference Tests don't work"

This reverts commit 960c4a7954d9cabf04ba2bbec6628cc54a793ca6.
Fixing namespace problems from issue #190
Added time complexity to LazyList XML doc
LazyList missing try

tryHead
tryTail
tryTake
trySkip
LazyList.mapAccum

moved from extensions module to LazyList module
added missing unit test
LazyList.uncons

uncons
TryUncons
unit tests
marked get obsolete
added readme to collections folder
LazyList remove obsolete methods and properties

no sense in keeping obsolete properties in collection that is new to
FSharpx
LazyList add members to type
Merge pull request #191 from jackfoxy/master

LazyList made compliant with FSharpx.Collections standards