Update index config with many not_analyzed fields

All @type:@id fields specified in the json context file
are copied and added to the index-mapping , defined
as "not_analyzed".
Merge branch 'issue-523-index-not_analyzed' of github.com:lobid/lodmill into issue-523-index-not_analyzed
Merge branch 'master' into issue-523-index-not_analyzed
Merge branch 'master' into issue-523-index-not_analyzed
Format spaces to tabs
Merge branch 'master' into issue-523-index-not_analyzed

Conflicts:
	lodmill-ld/src/main/resources/index-config.json
Update default tokenizer to "standard"

We formerly used (implicitly) the standard tokenizer.
Using "whitespace" here breaks some API calls, e.g. "item?q="DE-5-4".

So this commit fixes an issue introduced silently in #533
with commit b76c92a6f0b1817272e98a8ef22fc2b1676ba0f3.
Merge pull request #524 from lobid/issue-523-index-not_analyzed

Add to index config some more not_analyzed