Added tests for POD and POD coverage

t/04-pod.t

+use strict;
+use warnings;
+use Test::More;
+
+eval 'use Test::Pod 1.00';
+
+plan skip_all => 'Test::Pod 1.00 required for testing POD' if $@;
+
+all_pod_files_ok();

t/05-pod-coverage.t

+use strict;
+use warnings;
+use Test::More;
+
+eval 'use Test::Pod::Coverage';
+
+plan skip_all => 'Test::Pod::Coverage required for testing pod coverage' if $@;
+ 
+plan tests => 1;
+
+pod_coverage_ok('RedMiner::API', 'RedMiner::API POD ok');