Pyprind

================
- Changed visuals of the printed progress for percentage indicators.

================
- added ETA (estimated time until arrival) tracking to percentage indicator
(by Taylan Aydinli, https://github.com/taylan)

================
- Accepts a given outputstream for the `stream` parameter.

================
- Fixed bug that occurred for some Python 3.3.3 users
specifically on Linux Red Hat 4.4.7-1, GCC v. 4.4.7
that self.max_iter was cast to a float when `ProgBar()`
object was seeded with n=48.

================
- Fixed packaging of example files.

==============
- ProgBar and ProgPerc inherit data members from parent class Prog
- Added ProgBar and ProgPerc default argument `stream=2` to write to stderr by
default. Set `stream=1` to write to stdout.

my_prbar = pyprind.ProgBar(n, stream=1) writes to stdout
my_prbar = pyprind.ProgBar(n, stream=2) writes to stderr, default

- Does not redirect data to the standard output or error stream if program is not
outputting to a terminal.