[XQJ] Insert and further concurrency testing.
[FIX] Check return type in coerced function items.
[FIX] show all suggestions for an xpath at the GUIInput
[MIN] XQuery, Java Mapping: improved error feedback.
Merge branch 'next' of github.com:BaseXdb/basex into next
[MOD] XQuery, HTTP Module: handling of @src attribute revised
[FIX] RESTXQ, Uploading files: ignore empty uploads forms
[FIX] RESTXQ, Uploading files: ignore empty uploads forms
Merge branch 'next' of github.com:BaseXdb/basex into next
[MIN] XQuery, error message revised
[MIN] XQuery, Error message revised. Closing #838
Merge pull request #834 from cfoster/next

[XQJ] Insert and further concurrency testing.
[MIN] Eclipse and Checkstyle warnings resolved.
[MOD] XQuery, map syntax updated. Example:  map { "A": "B" }
[FIX] XQuery, HTML Serialization: @selected is lost. Closes #840.
[FIX] XQuery Parser: allow decimal values without fragment part
[FIX] GUI, Editor: show query IO exceptions in status bar
[FIX] XQuery, info: NullPointerException
[MOD] XQuery: show warning when compilation occurs at compile time
[ADD] XQuery, Sessions: test added (still unsolved, related to #841).