Generated doc fix

[mattijsf]

I found several issues when generating docs:

• The method setHandledMapChangedEvents introduced with ca2eb2d6cdd2547c461c3279fecda879d4fa7730 was picked up by docs.json. When trying to generating markdown using component.md.ejs it was trying to extract the method description and the generation failed with:

(node:42425) UnhandledPromiseRejectionWarning: TypeError: ejs:19
    17| #### <%- getMarkdownMethodSignature(method) %>
    18| 
 >> 19| <%- replaceNewLine(method.description) %>
    20| 
    21| ##### arguments
    22| | Name | Type | Required | Description  |

Cannot read property 'replace' of undefined

• When running npm run generate the new / latest docs.json was not picked up by MarkdownBuilder as the docs.json was read during import phase via autogenerate.js