Update .travis.yml (#12)

Author: John-Colvin

.travis.yml

@@ -7,16 +7,20 @@ os:
 language: d
 
 d:
- - dmd-2.071.2-b3
- - dmd-2.071.1
+ - dmd-2.074.0
+ - dmd-2.073.2
+ - dmd-2.072.2
+ - dmd-2.071.2
  - dmd-2.070.2
  - dmd-2.069.2
  - dmd-2.068.2
  - dmd-2.067.1
  - dmd-2.066.1
- - ldc-1.1.0-beta2
+ - ldc-1.3.0-beta1
+ - ldc-1.2.0
+ - ldc-1.1.1
  - ldc-1.0.0
- - ldc-0.17.1
+ - ldc-0.17.2
  - ldc-0.16.1
  - ldc-0.15.1
  - gdc