Release v2.6.0

[dduponchel]

Changes from v2.5.0:

• publish dist/ files in the npm package (see Remove dist from .npmignore #225).
• update pako to v1.0.0 (see Update pako dependency #261).
• add support of Array in JSZip#load (see Add support of Array in JSZip#load. #252).
• improve file name / comment encoding support (see Improve encoding support #211).
• handle prepended data (see Handle prepended data. #266).
• improve platform coverage in tests (see Update all devDependencies to latest versions #233 and Improve browser testing #269).

[Stuk]

👍