MVP build process

Doesn't push to the apt mirror yet, but it builds what I need to handle that step manually.

Closes #1

.gitlab-ci.yml

+image: containers.ethitter.com:443/docker/images/debian:jessie
+
+stages:
+  - test_pre_build
+  - build
+  - test
+  - deploy
+
+test_build_script:
+  stage: test_pre_build
+  image: koalaman/shellcheck-alpine:latest
+  script:
+    - shellcheck ./scripts/build.sh
+
+test_build_nginx:
+  stage: build
+  script:
+    - chmod +x ./scripts/build.sh
+    - ./scripts/build.sh
+  except:
+    - master
+
+build_nginx:
+  stage: build
+  script:
+    - chmod +x ./scripts/build.sh
+    - ./scripts/build.sh
+  artifacts:
+    paths:
+      - src/nginx/objs/nginx
+  only:
+    - master