[FIX] Pylint W0403 fixed.
[ADD] Wkhtmltopdf in travis added.
[FIX] Travis file fixed.
Merge pull request #22 from vauxoo-dev/8.0-pylint-w0403-dev-sabri

[FIX] Pylint W0403 fixed.
[FIX][l10n_pe_toponyms]Repair conflic with parent