Hardening/harness test cleanup round 2

All tests using orionCurl super function now plus a couple of minor bugs.
The tipical output for version is:

```

<orion>
  <version>0.14.0</version>
  <uptime>0 d, 0 h, 15 m, 48 s</uptime>
  <git_hash>5e3d210e4b15fa9ebbfa07c93dd41f8b41697d0e</git_hash>
  <compile_time>nodate</compile_time>
  <compiled_by>fermin</compiled_by>
  <compiled_in>centollo</compiled_in>
</orion>
```
You are right: the compiled_by and compiled_in fields will have a different length in each testing environment.

Thus, probably we should use a REGEX() for "any digit" in the .test:

```
Context-Lenght: REGEX(\d+)
```