[FIX] XQuery, GH-953: NPE while parsing function reference.
[FIX] XQuery: test fixed
Merge branch 'stable'
Merge pull request #954 from LeoWoerteler/gh-953

[FIX] XQuery, GH-953: NPE while parsing function reference.
[MIN] Fixes #952
Merge branch 'stable'
[ADD] XQuery optimizations: add leading root expression. Closes #955
[MIN] merged
[FIX] XQuery: correct Flag.UPD check at parse time
[ADD] XQuery: inspect:functions(uri). Closes #872
[MIN] merged
[MOD] Switching to 7.9 beta
[MIN] merged
[FIX] Core: reintroducing other languages. Delaying text parsing
[MIN] merged
[FIX] Options: only show assignment in debug mode if it was successful
Merge branch 'stable'
Fix a bug on a query example for python

Methods used by the former example,  `query.more()` and `query.next()`, do not exist any longer. 
I've modified  them to `query.execute()`, according to `BaseXClient.py`, to make it run as good as it should be.
Merge pull request #957 from yakiang/patch-1

fix a bug on a query example for python
[FIX] XQuery, GH-958: Ignore compile-time type errors involving fn:error().