Fix some changes with ssh starting

Hello, I tested some Makefile targets and met some errors. 

```
#make test
** in function linc_tests:setup/0 (test/linc_tests.erl, line 70)
** error: {badmatch, {error, {not_started, asn1}}
```
The changes in ```linc_tests.erl``` decide this problem.

```
#make dev
{error, {not_started, public_key}}
{error, {not_started, ssh}}
```
The changes in ```linc_capable_sup.erl``` decide this problem.

R16B01; Ubuntu 13.10 with kernel 3.11.0-12-generic

Best Regards,
Ihar Kukharchuk
EPAM Systems