Feature gate import shadowing
Updated RFC with more details
RFC for `if let` expression
Initial draft for `use path as id;` RFC.
added revision to extern crate syntax.
Add kimundi's suggestion of `extern crate <ident> as <ident>` variant.

Note that I only put it in the Alternatives.  I think there is a
pretty good argument that whether to do this or not is orthogonal to
this RFC, and the only reason to fold it into this RFC is to avoid the
process overhead of filing a seprate RFC.
RFC: Ban private items in public APIs
expand the Motivation and Drawbacks sections with examples
markdown fix
clarify a thing
greatly expand and sharpen the Motivation section based on discussion in the comment thread
Merge remote-tracking branch 'pnkfelix/fsk-use-path-as-id'
"Use path as id" is RFC 47
Merge remote-tracking branch 'glaebhoerl/no-privates-in-public'
"No privates in public" is RFC 48
Initial commit
Fix various typos and add an appdenix motivating the restriction
to exactly one lifetime.
RFC 49
Merge remote-tracking branch 'kimundi/no_module_shadowing'
RFC 50