Added call, apply, bind JavaScript examples
spelling fixes in bash (en)
Merge pull request #466 from kyrami/master

[bash/en] spelling fixes
Merge pull request #465 from joelbirchler/master

[javascript/en] Added call, apply, bind JavaScript examples
Fix typos and indentation
Merge pull request #467 from alexaltair/master

[julia/en] Fix typos and indentation
Source.fromPath no longer exists (https://github.com/scala/scala/blob/master/src/library/scala/io/Source.scala)  Changed example to use Source.fromFile
Merge pull request #468 from cengizIO/master

[scala/en] Source.fromPath no longer exists
Add more description to @property getters and setters.
Add getters and setters examples.
Add data types with examples.
Add examples of methods to work with NSSets.

Add note of NSSets being unordered.

Remove for loop to iterate on NSSet. Moved for loop to loop section.
Fix some comments to be more clear.
Add more data type examples.

Add NSMutableSet examples.
Add instance variable definition examples.