revisit our package.json once in a certain period of time

[anna-otrokhova]

Package names are constantly changing and some versions become deprecated.
I think it is a good idea to revisit our package.json once a month

Related issue: #56 (comment)

[anna-otrokhova]

For now, we have locked the version of packages in package.json file strictly. So even if there are updated versions of packages they won't be installed. There will be installed only necessary versions which work stable. In this way, a lot of errors and discrepancies can be avoided and revision can be performed in case of necessity or never.