reasons why there is no Observable.range
Refactor toMap
Remove 'immutable' prefix
Add a 'toMap' overload similar to List.toMap
Add examples for 'to[K, V, M[_, _]]'
Swap the order of the type params; Remove toMutableMap and toTreeMap; Update examples
Refactor toMultimap
Change `multiMapFactory` to a by-name parameter
Merge pull request #38 from samuelgruetter/range-doc

reasons why there is no Observable.range
Hotfix: Fix CompletenessTest
Merge pull request #71 from zsxwing/hotfix

Hotfix: Fix CompletenessTest
Merge pull request #67 from zsxwing/map

Refactor toMap
Merge branch '0.x' into multimap

Conflicts:
	src/test/scala/rx/lang/scala/CompletenessTest.scala
Merge pull request #68 from zsxwing/multimap

Refactor toMultimap
Merge branch '0.x' into img

Conflicts:
	src/main/scala/rx/lang/scala/Observable.scala