WaLLy3K 03201e2f20 Display FTL version & version.sh rewrite
While testing to make sure `pihole -v` would output `pihole-FTL version`, I noticed some options didn't work how I expected them to. For example, if I use `pihole -v -p`, I would expect to see the version output of Pi-hole Core. Instead, I'm informed that it's an invalid option.

I've had the following things in mind while rewriting this:
  * I'm operating under the assumption that FTL is only installed if the Admin Console is (Line 113 exit 0)
  * I have modified the help text to only output with `pihole -v --help`
  * I have modified all output to be more similar to the output style of `grep` and `curl` (Ditching ":::")

Testing output:
```
w3k@MCT:~$ pihole -v
  Pi-hole version is v3.0.1-14-ga928cd3 (Latest: v3.0.1)
  Admin Console version is v3.0-9-g3760482 (Latest: v3.0.1)
  FTL version is v2.6.2 (Latest: v2.6.2)
w3k@MCT:~$ pihole -v -c
  Current Pi-hole version is v3.0.1-14-ga928cd3
  Current Admin Console version is v3.0-9-g3760482
  Current FTL version is v2.6.2
w3k@MCT:~$ pihole -v -l
  Latest Pi-hole version is v3.0.1
  Latest Admin Console version is v3.0.1
  Latest FTL version is v2.6.2
w3k@MCT:~$ pihole -v -p --hash
  Current Pi-hole hash is a928cd3
w3k@MCT:~$ pihole -v -a --hash
  Current Admin Console hash is 3760482
w3k@MCT:~$ pihole -v --help
Usage: pihole -v [REPO | OPTION] [OPTION]
Show Pi-hole, Web Admin & FTL versions
  <Shows all Repositories and Options>
w3k@MCT:~$ pihole -v -foo
  Invalid Option!
```
2017-05-10 13:07:56 +10:00
..
2017-03-08 12:09:34 +01:00
2017-04-03 17:29:57 +02:00