Removed deprecations for @pack (#102)

Updated docs for PR 101

Author: mauro3

docs/src/manual.md

@@ -258,7 +258,7 @@ specialized packing of datatypes.
 ## The type-specific (un)pack macros (somewhat dangerous)
 
 The `@with_kw` macro automatically produces type-specific (un-)pack
-macros of form `@unpack_TypeName` and `@pack_TypeName!` which unpack/pack all fields:
+macros of form `@unpack_TypeName`, `@pack_TypeName!`, and `@pack_TypeName` which unpack/pack all fields:
 
 ```julia
 function fn(var, pa::Para)
@@ -273,6 +273,11 @@ end
 out, pa = fn(7, pa)
 ```
 
+When needing a new instance, e.g. for immutables, use the no-bang version:
+```
+pa2 = @pack_Para
+```
+
 However, note that the (un-)packing macros which unpack all fields
 have a few pitfalls, as changing the type definition will change what
 local variables are available in a function using `@unpack_*`. Examples:

src/Parameters.jl

@@ -788,10 +788,6 @@ macro pack!(args)
     esc(_pack_bang(args))
 end
 
-macro pack(args)
-    Base.depwarn("The macro `@pack` is deprecated, use `@pack!`", Symbol("@pack"))
-    esc(_pack_bang(args))
-end
 function _pack_bang(args)
     args.head!=:(=) && error("Expression needs to be in the form of an assignment.")
     suitecase, items = args.args