Disable the isolated version number regex.

It seems to catch mostly false positives. Also use a vector for the
version regexes, so no magic number is required.

src/backend/helpers.cpp

@@ -109,15 +109,15 @@ namespace loot {
 
     /// Array used to try each of the expressions defined above using
     /// an iteration for each of them.
-    const regex version_checks[7] = {
+    const std::vector<boost::regex> version_checks({
         regex(regex1, regex::ECMAScript | regex::icase),
         regex(regex2, regex::ECMAScript | regex::icase),
         regex(regex3, regex::ECMAScript | regex::icase),
         regex(regex4, regex::ECMAScript | regex::icase),
         regex(regex5, regex::ECMAScript | regex::icase),  //This incorrectly identifies "OBSE v19" where 19 is any integer.
-        regex(regex6, regex::ECMAScript | regex::icase),  //This is responsible for metallicow's false positive.
+        //regex(regex6, regex::ECMAScript | regex::icase),  //This is responsible for metallicow's false positive.
         regex(regex7, regex::ECMAScript | regex::icase)
-    };
+    });
 
     //////////////////////////////////////////////////////////////////////////
     // Helper functions

src/backend/helpers.h

@@ -35,7 +35,7 @@
 namespace loot {
     /// Array used to try each of the expressions defined using
     /// an iteration for each of them.
-    extern const boost::regex version_checks[7];
+    extern const std::vector<boost::regex> version_checks;
 
     //////////////////////////////////////////////////////////////////////////
     // Helper functions

src/backend/metadata.cpp

@@ -421,7 +421,7 @@ namespace loot {
             string text = boost::locale::conv::to_utf<char>(file->getDescription(), "Windows-1252", boost::locale::conv::stop);
 
             BOOST_LOG_TRIVIAL(trace) << name << ": " << "Attempting to read the version from the description.";
-            for (size_t i = 0; i < 7; ++i) {
+            for (size_t i = 0; i < version_checks.size(); ++i) {
                 smatch what;
                 if (regex_search(text, what, version_checks[i])) {
                     //Use the first sub-expression match.