[FIX] WebDAV: fixed authentication and authorization. Closes #923
Merge branch 'stable'
[MIN] IntelliJ: switching to Java 7
[MIN] Cleanups
Merge branch 'stable'

Conflicts:
	basex-api/src/test/java/net/xqj/basex/local/XQJConcurrencyTest.java
[FIX] IntelliJ IDEA config
[MIN] Optimizations triggered by IntelliJ inspections
Merge branch 'stable' of github.com:BaseXdb/basex

Conflicts:
	basex-core/src/main/java/org/basex/query/func/FNFile.java
	basex-core/src/main/java/org/basex/query/util/crypto/DigitalSignature.java
[FIX] RESTXQ: returning instead of raising error
[MIN] IntelliJ: 1.6 → 1.7 (once again)
[MIN] IntelliJ
[MIN] IntelliJ