[FEATURE] Sending emails.

Resolves: #32
Releases: 1.2.21
[WIP|FEATURE] Ability to send emails automatically or not.

Resolves: #32
Releases: 1.2.22
[WIP|FEATURE] Include send automatically variable on keywordentity creation.

Resolves: #32
Releases: 1.2.22.1
[FEATURE] Toggle send emails automatically done.

Resolves: #32
Releases: 1.2.23