hoa: fix I/O of determinism

Fixes #212.

* spot/parseaut/parseaut.yy, spot/twaalgos/hoa.cc: Recognize
exist-branch, and adjust printer to the 1.1 semantics.
* tests/core/alternating.test, tests/core/complete.test,
tests/core/det.test, tests/core/explsum.test,
tests/core/parseaut.test, tests/core/readsave.test,
tests/core/sbacc.test, tests/core/tgbagraph.test,
tests/python/alternating.py, tests/python/dualize.py: Adjust test
cases.
* NEWS: Mention the change.

tests/core/complete.test

@@ -195,8 +195,8 @@ Start: 0
 AP: 2 "a" "b"
 acc-name: co-Buchi
 Acceptance: 1 Fin(0)
-properties: univ-branch trans-labels explicit-labels state-acc complete
-properties: deterministic very-weak
+properties: trans-labels explicit-labels state-acc complete
+properties: deterministic univ-branch very-weak
 --BODY--
 State: 0
 [!0 | 1] 0
@@ -210,8 +210,8 @@ Start: 0&1
 AP: 0
 acc-name: co-Buchi
 Acceptance: 1 Fin(0)
-properties: univ-branch trans-labels explicit-labels state-acc complete
-properties: deterministic
+properties: trans-labels explicit-labels state-acc complete
+properties: deterministic univ-branch
 --BODY--
 State: 0
 [t] 0
@@ -233,8 +233,8 @@ Start: 0
 AP: 2 "a" "b"
 acc-name: co-Buchi
 Acceptance: 1 Fin(0)
-properties: univ-branch trans-labels explicit-labels state-acc
-properties: deterministic very-weak
+properties: trans-labels explicit-labels state-acc deterministic
+properties: univ-branch very-weak
 --BODY--
 State: 0
 [!0 | 1] 0
@@ -248,8 +248,8 @@ Start: 0&1
 AP: 0
 acc-name: co-Buchi
 Acceptance: 1 Fin(0)
-properties: univ-branch trans-labels explicit-labels state-acc
-properties: deterministic
+properties: trans-labels explicit-labels state-acc deterministic
+properties: univ-branch
 --BODY--
 State: 0
 State: 1