[WFLY-3315] Fix day of week computation

CalendarBasedTimeout overrides the 1st day of week value (which is
Locale-dependent) when it computes its firstTimeout in setFirstTimeout().
However it must also override it in the truncate() method to make sure
that comparison between the firstTimeout and its truncated copy is
correct. Bugs will occur if the JVM's Locale has a different value for
the 1st day of the week (e.g. French week starts on monday, while
English week starts on sunday).

JIRA: https://issues.jboss.org/browse/WFLY-3315
Fix grammar in error message
WFLY-3318. Use port offset for RTS base URL
[WFLY-444] Deprecate exposure of server environment modules-dir in mgmt api
Use a minor bump for core mgmt API, not micro
Forward part 2.0 xsd improvements to 2.1
[WFLY-3321] Deprecate transaction subsystem path attributes in the mgmt API

Conflicts:
	controller/src/main/java/org/jboss/as/controller/services/path/ResolvePathHandler.java
[WFLY-3321] Deprecate transaction subsystem path attributes in the latest xsd
Undertow 1.0.9.Final
WFLY-3232. XTS coordinator URL is not initialised correctly
Merge pull request #6232 from jmesnil/WFLY-3315_CalendarBasedTimeoutTestCase_FRENCH_Locale

[WFLY-3315] Fix day of week computation
Merge pull request #6239 from bstansberry/WFLY-444

Misc stuff related to the 8.1 API version
Merge pull request #6242 from Gytis/master-WFLY-3318

WFLY-3318. Use port offset for RTS base URL
Merge pull request #6247 from bstansberry/WFLY-3321

[WFLY-3321] Deprecate transaction subsystem path attributes
Merge pull request #6248 from stuartwdouglas/undertow

Undertow 1.0.9.Final
Merge pull request #6251 from Gytis/master-WFLY-3232.XTS_coordinator_URL_is_not_initialised_correctly

WFLY-3232. XTS coordinator URL is not initialised correctly
Merge pull request #6240 from stuartwdouglas/minor

Fix grammar in error message