Update dependencies and metadata

- given we're not near a stable release at the moment, stop targetting
LTS versions of HHVM
- allow HSL and HHAST v3.26

.travis.yml

@@ -1,7 +1,6 @@
 language: php
 php:
  - hhvm
- - hhvm-3.24
  - hhvm-nightly
 script:
  - ./.travis.sh

composer.json

@@ -4,9 +4,9 @@
   "keywords": ["hack", "router", "routing", "hhvm"],
   "homepage": "https://github.com/hhvm/hack-router",
   "require": {
-    "hhvm": "^3.23.0",
+    "hhvm": "^3.26.0",
     "hack-psr/psr7-http-message-hhi": "^0.2.0|^1.0.0",
-    "hhvm/hsl": "^1.0.0",
+    "hhvm/hsl": "^1.0.0|^3.26.0",
     "hhvm/hhvm-autoload": "^1.5.3"
   },
   "extra": {
@@ -18,7 +18,7 @@
     "phpunit/phpunit": "^5.1",
     "91carriage/phpunit-hhi": "^5.1",
     "zendframework/zend-diactoros": "^1.3",
-    "facebook/fbexpect": "^0.4.0",
-    "hhvm/hhast": "^1.0"
+    "facebook/fbexpect": "^0.4.0|^1.0",
+    "hhvm/hhast": "^1.0|^3.26.0"
   }
 }