Adds coverage

Begin work adding coverage.

.travis.yml

@@ -1,5 +1,7 @@
 language: c
 
+sudo: false
+
 env:
   global:
     - LUAROCKS=2.3.0
@@ -9,23 +11,22 @@ env:
     - LUA=lua5.3
     - LUA=luajit
 
-branches:
-  only:
-    - master
-
 before_install:
-  - bash .travis/setup_lua.sh
-  - sudo pip install cpp-coveralls
+  - bash .travis/setenv_lua.sh
+  - pip install cpp-coveralls
+  - luarocks install Lua-cURL         --server=https://luarocks.org/dev
+  - luarocks install luacov-coveralls --server=https://luarocks.org/dev
 
 install:
-  - sudo luarocks make rockspecs/luafilesystem-cvs-3.rockspec CFLAGS="-O2 -fPIC -ftest-coverage -fprofile-arcs" LIBFLAG="-shared --coverage"
+  - luarocks make rockspecs/luafilesystem-cvs-3.rockspec CFLAGS="-O2 -fPIC -ftest-coverage -fprofile-arcs" LIBFLAG="-shared --coverage"
 
 script:
   - cd tests
   - sudo lua test.lua
 
 after_success:
-  - coveralls -b .. -r .. -E usr
+  - coveralls -b .. -r .. -i ./src --dump c.report.json
+  - luacov-coveralls -j c.report.json -v
 
 notifications:
   email: