Fix quotes on scriptname variable

Merge pull request #18 from pgporada/master

Change rate limited error message

v0.21 Add column KEY ALG

Added new column KEY ALG showing the Key Algorithm used in certificate

v0.20 Fix certificate count

Even if there are no certificates for a domain, lectl returns 1 certificate because the wc -l command also counts blank lines

v0.19 Fix, some commands were not used as variables

v0.18 Fix issues with new html on crt.sh

Modify pattern to allow searches using wildcards

grep pattern modified to allow searches using wildcard subdomains *.domain.tld. Keep in mind that using *.domain.tld searches literally for *.domain.tld and in this case * doesn't act as a wildcard. Thanks to @travisjeffery for requesting it and provide a pull a request.

Raised rate limit from 20 to 50

2018-Aug-05: Fix, Let's Encrypt has raised the rate limit to issue certificates for a domain in 7 days from 20 to 50,so I've updated it too.

Updated README to show last options