Add Android5 (0.13.2) to Travis builds
Add Android5 (0.13.2) to Travis builds

1. FFI is disabled
   because libffi should be compiled with -f PIC
2. TCC is disabled
   because I'm lazy

hostilefork/rebol,rgchris/ren-c,rgchris/ren-c,rgchris/ren-c,hostilefork/rebol,rgchris/ren-c,hostilefork/rebol,draegtun/ren-c,codebybrett/ren-c,draegtun/ren-c,giuliolunati/ren-c,hostilefork/rebol,draegtun/ren-c,giuliolunati/ren-c,codebybrett/ren-c,codebybrett/ren-c,draegtun/ren-c,draegtun/ren-c,kealist/ren-c,kealist/ren-c,giuliolunati/ren-c,rgchris/ren-c,giuliolunati/ren-c,giuliolunati/ren-c,kealist/ren-c,kealist/ren-c,kealist/ren-c,draegtun/ren-c,codebybrett/ren-c,kealist/ren-c,codebybrett/ren-c,hostilefork/rebol,codebybrett/ren-c,hostilefork/rebol