Sequelize store fixed + dependence updated

• #41 Sequelize store fixed (thanks @marklawlor).
• #41 Sequelize dependence updated (thanks @marklawlor).
• Tests are running in Node LTS environment (thanks @rimiti).

Package more lightweight

• Package more lightweight (Unpacked: 1MB => 108.4 kB)

Some chore improvements

• #30 Added fixed versions in docker-compose (thanks @matthiaseigner)
• #32 Dependencies upgraded (thanks @rimiti)
• #33 Documentation updated.
• #33 Packages updated.

Fix - Links updated in package.json

• Github repo links updated

Chore - Many changes

• Documentation change
• Package.json github links updated

Fix - Package fixed after upgrade

• Package fixed after upgrade

Chore - Dependencies upgraded

• Sequelize upgraded

Multi - Many changes

• Memory store fixed.
• Tests added for middleware function.
• Tests use npm entry point.
• Logo added into README file.
• Version bumped.

Feat - CommonJS wrapper created

• Since Babel 6.x, default commonJS import has been broken. We have implemented babel-plugin-add-module-exports to resolve it.
• Version bumped
• Documentation updated

Chore - Production ready

• organisation created, badge links updated
• all packages have been upgraded
• nsp integration