[MIN] minor speedup
[FIX] GUI, Editor: jump to error file
[MIN] XQuery, index access: improved string representation
[FIX] XQuery, GH-698: Function literal variables allocated in the right stack frame.
Merge pull request #699 from LeoWoerteler/gh-698

[FIX] XQuery, GH-698: Function literal variables allocated in the right stack frame.
Merge branch 'master' of github.com:BaseXdb/basex
[MIN] XQuery, minor tweaks
[MOD] XQuery: removing downgrade call (still buggy)
[FIX] XQuery, serialization; tweaks
[FIX] XQuery, 1.0 compatibility. Closes #694
[MIN] XQuery, namespace constructor: test added
[FIX] XQuery, format-number: checks, Unicode characters > x1000
[FIX] XQuery, format-number: detection of fractional part
[FIX] XQuery, finding similar functions names (discovered by @holu)
[MIN] comment
[FIX] Commands, CHOP=false: string check revised
[FIX] XQuery, #703: raise error if Java string has invalid XML chars
[FIX] XQuery: disallow full optimization of opened dbs. Closes #702
[MIN] XQuery: optimized query output
[MIN] XQuery, type of third fn:serialize() argument