Merge data from data files and src file

[Huntedpix]

Hi !

I needed to be able to merge datas from the data directory and the data from the src file (yml) to avoid re-writing of all the key (as it could sometimes be really long)

Example:

Data file "site":

navigation:
  primary: yes
  footer: yes

src file (*.md):

site:
  navigation:
    footer: false

To get data as:

navigation:
  primary: yes
  footer: false

As I think this might interest you, I created this pull request, feel free to merge :)

[doowb]

Hi @Huntedpix thanks for the PR and sorry for the delayed response. I've checked this locally and there is data being "leaked" between pages due to merging. I'm not exactly sure where it's happening, but if you rebase your changes against master and run grunt assemble you'll see that some of the pages in test/actual end up with titles from other pages.

If you can track it down and update the PR with a fix, that would be great, but also know that we're working on the "refactor" branch so that grunt-assemble will use the latest version of assemble.

[Huntedpix]

Hi @doowb !

Sorry for the delayed response, I was assign to a priority project.

The leaked information come from a simple error. As I'm not familiar with lodash, I misread the documentation and I have assume the behavior of _.merge().

I've made some test locally and everything seems ok.