[FIX] XQuery, xquery:invoke(): set file uri as query base uri
[MOD] Year updated: 2012 -> 2013
[MOD] Simplified OrderBy expression.
Revert "Extended BitArray"

This reverts commit ed531a36e952d907bd8578529289170b7d882431.

Conflicts:
	src/main/java/org/basex/util/BitArray.java
	src/test/java/org/basex/test/util/BitArrayTest.java
[MOD] Enabled inlining across order-by clauses.
[MOD] Fixed bugs found by XQUTS and XQFTTS.
Merge branch 'master' into stack-frames
[MOD] Allow static variable declarations in any order.
[FIX] Better detection for circular variable definitions.
Merge pull request #636 from LeoWoerteler/stack-frames

Finalizing the stack-frames branch.