[FIX] XQuery, GH-1023: Do not optimize at run-time.
Merge pull request #1025 from LeoWoerteler/gh-1023

[FIX] XQuery, GH-1023: Do not optimize at run-time.
[MIN] XQuery: fixes #1023 (minor rewritings, test added)
Merge branch 'master' of github.com:BaseXdb/basex
[GUI] Project View: improved detection of root directory
[FIX] XQuery, Java Modules: return correct return type
[ADD] XQuery, session:set(): allow sequences as values
[MIN] XQuery, similar function names: prefer functions in same namespace
[FIX] GUI, Project View: NPE
[FIX] XQuery, innermost/outermost: remove duplicates
[FIX] XQuery, promote closure type. Fixes #1023
[FIX] XQuery, fn:parse-ietf-date: parse 'utc' before 'ut'
[FIX] XQuery, QT3TS: Fix for GenCompEq-22
[ADD] XQuery 3.1: new type "xs:numeric"
[FIX] XQuery, QT3TS, max(): anyURI; lowest common numeric subtype
[FIX] XQuery, Process Module: PROC.... → BXPR....
[FIX] XQuery: test fixed
[MOD] Commands: OPEN extended with path argument
[DEL] Commands: CS removed
[FIX] REST, basex-talk: "Read permissions needed"
[FIX] RESTXQ: 8d72ee1d8d, #978: path handling normalized
[MOD] GUI: save preferences more often
[MIN] GUI: handling of new and previously opened files revised