Fixed issue #71 escape ' in inline criteria.

json-path/src/main/java/com/jayway/jsonpath/Criteria.java

@@ -779,7 +779,11 @@ public class Criteria implements Predicate {
         } else if (leftNullish && rightNullish) {
             return 0;
         } else if (left instanceof String && right instanceof String) {
-            return ((String) left).compareTo((String) right);
+					  String exp = (String)left;
+					  if(exp.contains("\'")){
+							exp = exp.replace("\\'", "'");
+						}
+            return exp.compareTo((String) right);
         } else if (left instanceof Number && right instanceof Number) {
             return new BigDecimal(left.toString()).compareTo(new BigDecimal(right.toString()));
         } else if (left instanceof String && right instanceof Number) {

json-path/src/test/java/com/jayway/jsonpath/old/IssuesTest.java

@@ -497,4 +497,20 @@ public class IssuesTest {
 
         Assertions.assertThat(problems).containsExactly("Chain does not have a discovery event. Possible it was cut by the date that was picked", "No start transcoding events found");
     }
+
+	  @Test
+	  public void issue_71() {
+		   String json = "{\n"
+			    + "    \"logs\": [\n"
+			    + "        {\n"
+			    + "            \"message\": \"it's here\",\n"
+			    + "            \"id\": 2\n"
+			    + "        }\n"
+			    + "    ]\n"
+			    + "}";
+
+		   List<String> result = JsonPath.read(json, "$.logs[?(@.message == 'it\\'s here')].message");
+
+		   Assertions.assertThat(result).containsExactly("it's here");
+	}
 }