Add passwordInput Binding
Update register passwordInputBinding
Implement arbitrary file downloads
Add param docs
Add CSS hooks for app-wide busy indicators
Fix runGist cygwin warning bug
Squash another cygwin warning
Bring untar operations in-house

Very simple tweak to R's untar2 code was all that was
required to fix the built-in untar's problems with
gists. Seemed best to just fork it and start using
the forked version directly, regardless of what is
installed on your machine.
Update metadata for 0.1.12
I am stupid.
Clean up PNG file when no longer needed
Update version metadata
Fix slider animation controls
Update metadata for 0.1.14
Fix subtle name resolution bugs

See in particular:
http://stackoverflow.com/questions/13575353/how-does-the-shiny-r-package-deal-with-data-frames

Also reported at different times by Dirk Eddelbuettel and Jay Emerson.

The observed behavior is that S3/S4 method dispatch does not always seem to
work; the desired methods are not invoked despite appearing to be in the
search path.

The problem was that sourcing files with local=TRUE creates a new environment
based on the parent frame, which in our case is Shiny's package environment.
What we really want is to read from the global environment but write to a
throwaway environment. The correct way to do that is to make a new environment
with .GlobalEnv as the parent.
Trivial style copy edits to example 10_download
Require Shiny at app startup

Some of our examples omit library(shiny) from the top of ui.R and server.R,
which worked fine before but not with the namespace fix from yesterday.
Requiring shiny at startup fixes the problem.
Update package metadata for v0.2.0
[BREAKING] Modify API of `downloadHandler`

The `content` function now takes a file path, not writable connection, as an argument.
This makes it much easier to work with APIs that only write to file paths, not
connections.
Fix CRAN warning; version 0.2.2