Added a Type Delimiters section to the Language Spec.
Edited the memory management line at the beginning of Language Spec.
Updated the keywords to reflect changes.

Changes include:
* Getting rid of the "body" keyword.
* Adding the "block" keyword.
* Deleting the "while" keyword. Like the Go Language, I think it's
  redundant.
Changed the operator list to reflect recent changes, most notably the
addition of the "Type Delimiters" section.
Minor style to the Language Spec. Made so lines didn't go much over 80.
Minor edits to the "Types" section for clarifications.
Added the string type to the "Types" section of the Language Spec.
Minor edits to the "Method Sets" subsection of the "Types" section.

The edits were to fix problems caused by copying and pasting the Go
Language Spec. Go doesn't differentiate between types and pointers,
and LFyre does. The changes reflect that.
Added an "Interface Types" section to the "Types" section.

This section is still a very rough draft. Expect it to change.
Labeled the "Declarations and Scope" section as unfinished.
Updated the "Types" section in the Table of Contents.

Some of the changes reflected in this commit are not reflected in the
body of the document yet. They will be added soon.
Edits to the "Pointer Types" subsection of the "Types" section.
Added an "Array Types" subsection to the "Types" section.

Please note that this is a very rough draft. It will change.
Added a "Tuple Types" subsection to the "Types" section.

This section is still very much a rough draft. I added hardly anything,
actually. I added enough to remind me what tuples will be in LFyre. So
expect that it will change a lot.
Edited the "Function Types" subsection of the "Types" section.

This commit includes corrections for material pasted from the Go
Language Spec as well as additions.
Added some more material to the "Function Types" subsection.

This commit adds predeclared properties.
Added a "Maps Type" subsection to the "Types" section.

This section is still a rough draft. Most of it was pasted from the Go
Language Spec. It will change.
Added a very rough "Channel Types" subsection to the "Types" section.

Expect this section to change a lot.
Added a "Non-Nilable Types" subsection to the "Types" section.

As with previous additions, this is still a very rough draft, and it
will definitely change in the future.
Added a "Nilable Types" subsection to the "Types" section.

As with other recent additions, this is also a rough draft.
Expect it to change.