Merge pull request #716 from dirkk/event-tests

[MOD] check at the events tests if the events are actually executed
[MIN] Checkstyle
[MOD] XQuery, Inspect Module: better detection of documentation snippets
[MOD] XQuery: require/prohibit feature removed
[MOD] GUI, Editor and Text view: add default file suffix
[MOD] XQuery, ExtTest renamed to NodeTest, convenience constructor added
[MOD] pom.xml updated
[MOD] Command-line: set query base uri to addressed file
[ADD] RESTXQ: catch errors.
      Documentation: http://docs.basex.org/wiki/RESTXQ#Error_Handling
[FIX] XQuery, format date: check invalid calendars
[FIX] XQuery, QT3TS: improved detection of integer limits
[FIX] XQuery: check type of bound context item
[FIX] XQuery, function flags: array with updating functions removed
[FIX] XQuery, Serialization of HTML elements
[FIX] XQuery, Serialization of empty HTML elements
[FIX] XQuery, context item declaration: only allow single items
[FIX] XQuery, Serialization: add missing namespaces
[FIX] XQuery, Serialization: raise SEPM0009 only for XML & XHTML
[MIN] Server: reduce sleeping time
[MOD] XQuery: speed up namespace serialization