RFC for `if let` expression
Add RFC to feature gate some slice patterns
RFC: tuple accessors
Fix indexing example to be zero-based
Improve semantics explanation
More sensible ‘Alternatives’ section

Indexing of tuples makes no sense because not all tuples are homogenous.
Minor style & formatting fixes
RFC: conventions for ownership variants
RFC: Change syntax of subslice matching
Initial commit
Add note about feature-gate

Also fix a couple of typos.
Merge remote-tracking branch 'kballard/if_let'
if-let is RFC 51
Add feature gate; remove special syntactic support for nested indices
Update to _move

Based on the weekly meeting:

  https://github.com/rust-lang/meeting-minutes/blob/master/weekly-meetings/2014-08-26.md
Merge remote-tracking branch 'aturon/ownership-variants'
Ownership variants is RFC 52
Added description of current grammar.
Correct closures PR link
Merge pull request #222 from shepmaster/closure-link

Correct closures PR link