updated changelog

Fixing node.js and npm PATH problem, loading automatically the PATH f……rom the user's shell env.

fixpichillilorenzo#25,fixpichillilorenzo#24, Added "enable_keymap"…… option to the plugin settings in order to allow quick enabling/disabling of the default plugin keymaps

fixpichillilorenzo#21,fixpichillilorenzo#22, try to managepichill……ilorenzo#20

fixpichillilorenzo#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