* Semi-automated using `ssf-formula` (v0.5.0)
* Fix (or ignore) errors shown below:
```bash
postfix-formula$ $(grep "\- yamllint" .travis.yml | sed -e "s:^\s\+-\s\(.*\):\1:")
./postfix/osfamilymap.yaml
1:1 warning missing document start "---" (document-start)
./postfix/services.yaml
11:1 warning missing document start "---" (document-start)
12:1 warning comment not indented like content (comments-indentation)
221:1 warning comment not indented like content (comments-indentation)
./postfix/defaults.yaml
4:1 warning missing document start "---" (document-start)
pillar.example
1:1 warning missing document start "---" (document-start)
2:25 warning truthy value should be one of [false, true] (truthy)
13:17 warning truthy value should be one of [false, true] (truthy)
16:17 warning truthy value should be one of [false, true] (truthy)
22:17 warning truthy value should be one of [false, true] (truthy)
23:17 warning truthy value should be one of [false, true] (truthy)
25:17 warning truthy value should be one of [false, true] (truthy)
29:17 warning truthy value should be one of [false, true] (truthy)
31:17 warning truthy value should be one of [false, true] (truthy)
35:17 warning truthy value should be one of [false, true] (truthy)
47:15 warning truthy value should be one of [false, true] (truthy)
50:18 warning truthy value should be one of [false, true] (truthy)
53:21 warning truthy value should be one of [false, true] (truthy)
62:24 warning truthy value should be one of [false, true] (truthy)
66:31 warning truthy value should be one of [false, true] (truthy)
69:19 warning truthy value should be one of [false, true] (truthy)
70:19 warning truthy value should be one of [false, true] (truthy)
73:14 warning truthy value should be one of [false, true] (truthy)
74:21 warning truthy value should be one of [false, true] (truthy)
78:14 warning truthy value should be one of [false, true] (truthy)
89:15 error trailing spaces (trailing-spaces)
96:6 warning missing starting space in comment (comments)
130:89 error line too long (105 > 88 characters) (line-length)
131:89 error line too long (101 > 88 characters) (line-length)
152:5 error duplication of key "sender_canonical_maps" in mapping (key-duplicates)
154:5 error duplication of key "virtual_alias_maps" in mapping (key-duplicates)
190:5 error duplication of key "use_file" in mapping (key-duplicates)
235:9 error wrong indentation: expected 10 but found 8 (indentation)
248:1 error duplication of key "postfix" in mapping (key-duplicates)
258:85 error trailing spaces (trailing-spaces)
```
The services definitions for master.cf were previously defined in
the services.jinja file.
This commit instead moves them into the services.yaml file, as we
should not require any jinja parsing inside the services definitions.
Drive-By: Add a .gitignore file
Drive-By: Set manage_master_config: True for kitchen. We do want to
verify that the master.cf file generation is actually working.
Drive-By: Add fedora-latest as a kitchen testing target, this helps
with verifying the os_family map testing that was added in
PR #79
Drive-By: Link to the kitchen-salt getting started guide in the README
