updated changelog

Fixing node.js and npm PATH problem, loading automatically the PATH f…

…rom the user's shell env.

fix pichillilorenzo#25, fix pichillilorenzo#24, Added "enable_keymap"…

… option to the plugin settings in order to allow quick enabling/disabling of the default plugin keymaps

fix pichillilorenzo#21, fix pichillilorenzo#22, try to manage pichill…

…ilorenzo#20

fix pichillilorenzo#20, added a message in the status bar in case of …

…a subprocess.CalledProcessError error

removed print()

updated with #14 pull request

fix ImportError: No module named 'six' #13 on Windows, fix evaluate_j…

…avascript feature also in non-project files

updated version to 0.13.0, updated changelog and messages.json

updated issue_template.md