index.html in rcmd-1.6.3

- old
+ new

@@ -171,14 +171,18 @@
 node12 :: node12.example.com</pre>
 
 <h2 id="label-Database+backend+support">Database backend support<span><a href="#label-Database+backend+support">&para;</a> <a href="#top">&uarr;</a></span></h2>
 
 <p>The database backend support is provided by ActiveRecord and thus
-compatible with databases which are supported by ActiveRecord. Currently
-the ActiveRecord version is locked to 4.0.0 in the Gemspec due to
-compatibilty issues with RHEL, CentOS, and Mac OSx to name a few.</p>
+compatible with databases which are supported by ActiveRecord. Out of the
+box mysql2, sqlite3 and postgresql work. To use another database backend
+then you will need to download the source, add it to the rcmd.gemspec file,
+and correct the &#39;requires&#39; in lib/rcmd/db.rb accordingly.</p>
 
+<p>I tried having all of types in there but the dependency requirements became
+too great, both within Ruby and development libraries on the system.</p>
+
 <p>To set up the database backend run rcmd with the &#39;-C&#39; switch first.
 This will create a database configuration file in ~/.rcmd named
 dbconfig.yml. In this file you can specify the adapter, and various other
 soptions for the database backend. For the queries to work properly, the
 :host_field: <em>MUST</em> be set so the command knows what column contains
@@ -217,9 +221,17 @@
 <p>OS query (Match all hosts listed as running slackware): <code>bash
 daibhidh@darkstar:~/$ rcmd -o &#39;slackware&#39; -c &#39;hostname -f&#39;
 node10 :: node10.example.com node12 :: node12.example.com node18 ::
 node18.example.com node17 :: node17.example.com node11 ::
 node11.example.com </code></p>
+
+<h2 id="label-Database+Issues">Database Issues<span><a href="#label-Database+Issues">&para;</a> <a href="#top">&uarr;</a></span></h2>
+
+<p>Due to some Operating systems forcing older Ruby versions (RedHat, CentOS,
+Mac OS X) rcmd will not install properly on these hosts. You can either
+manually install a newer version of Ruby (&gt;= 2.2.2) or you can try to
+install activerecord and activesuppert versions 4.2.6. This might work but
+I have not fully tested it as of yet.</p>
 
 <h1 id="label-Development">Development<span><a href="#label-Development">&para;</a> <a href="#top">&uarr;</a></span></h1>
 
 <p>If you are wanting to modify the code by all means do so. If you clone this
 repository you can then run <code>bundle install</code> to install the