Add a task list generator example

* Add a small script that will generate a tasklist by running
   "git diff origin/master" and doing some simple checks on the
   newly added line.

   I run this script like that in the top level Qt creator
   source directory:
   while true; do scripts/mytasks.pl > qtcreator.tasks ; sleep 600 ; done

   This updates the tasklist every 10min. Qt Creator will detect the change
   and reload the list.

scripts/mytasks.pl

@@ -0,0 +1,65 @@
+#!/usr/bin/perl
+
+use strict;
+
+my $date = `date`;
+print "# $date";
+
+sub escape {
+    my $text = shift;
+    $text =~ s/\\/\\\\/g;
+    $text =~ s/\n/\\n/g;
+    $text =~ s/\t/\\t/g;
+    return $text;
+}
+sub checkLine {
+    my $line = shift;
+    my $file = shift;
+    my $row = shift;
+
+    $file = escape($file);
+    $row = escape($row);
+
+    if ($line =~ /(FIXME|TODO)(.*)$/) {
+        print "$file\t$row\tWARNING\t$1$2\n";
+    }
+    if ($line =~ /(qDebug|QDebug>|QtDebug>|<debug>)/) {
+        print "$file\t$row\tWARNING\tRemove debug code\n";
+    }
+    if ($line =~ /^(<<<<|====|>>>>)/) {
+        print "$file\n$row\tERROR\tResolve conflict!\n";
+    }
+    if ($line =~ /(Q_SIGNALS|Q_SLOTS)/) {
+        print "$file\t$row\tWARNING\tPrefer signals and slots over Q_SIGNALS and Q_SLOTS\n";
+    }
+    if ($line =~ /^#\s*(warning|error) (.*)$/) {
+        print "$file\t$row\t$1\tClean up preprocessor $1:$2\n";
+    }
+}
+
+my $filename = "";
+my $pos = 0;
+
+open(PIPE, "git diff origin/master|");  
+while (<PIPE>) {
+    chomp;
+    my $line = $_;
+    print "#$line\n";
+    next if ($line =~ /^-/);
+    if ($line =~ /^\+\+\+ (.*)$/) {
+        $filename = $1;
+        $filename =~ s/^b\///;
+        $pos = 0;
+        next;
+    }
+    next if $filename =~ /^\/dev\/null$/;
+    if ($line =~ /^@@ -\d+,\d+\s\+(\d+),\d+ @@$/) {
+        $pos = $1 - 1;
+        next;
+    }
+    $pos = $pos + 1;
+    if ($line =~ /^\+(.*)/) {
+        checkLine($1, $filename, $pos);
+    }
+}  
+close(PIPE);