set PATH as rakudobrew demands

Author: gfldex

.travis.yml

@@ -21,6 +21,7 @@ perl6:
   - latest
 install:
   - rakudobrew build-panda
+  - export PATH="$PATH:/home/travis/.rakudobrew/moar-nom/install/share/perl6/site/bin"
   - panda --force --notests install LWP::Simple
   - panda installdeps .
   - panda install Pod::To::HTML