QGIS » QGIS Application

I'm getting an error with some plugins (eg NTv2 Datum Transformations) from the nightly build of 30/06/2016, because of the accents that are in metadata.txt files:
https://github.com/NaturalGIS/ntv2_transformations/blob/master/metadata.txt ("Venâncio" / "Krüger")

An error occurred during execution of following code:
import pyplugin_installer

UnicodeEncodeError: 'ascii' codec can't encode characters in position 10-11: ordinal not in range(128)

Python version:
2.7.6 (default, Jun 22 2015, 18:03:54)
[GCC 4.8.2]

QGIS version:
2.15.0-Master 'Master', 5f66276

An error occurred during execution of following code:
pyplugin_installer.initPluginInstaller()

Traceback (most recent call last):
  File "", line 1, in
NameError: name 'pyplugin_installer' is not defined

Python version:
2.7.6 (default, Jun 22 2015, 18:03:54)
[GCC 4.8.2]

QGIS version:
2.15.0-Master 'Master', 5f66276

Removing all the accents from metadata.txt, it stop giving problems.

I'm facing with this both on Linux and Windows, and I've just tested a clean Linux LiveUSB, and confirm the problem.

Can this be related to 4b16c64