Initial checkin of resolver.php

- use \\ instead of just \ in FileName
- Use file_put_contents instead of open/write
- Use file_exist instead of stat
- Added /lib directory
- Moved /tftpboot/index.cfg -> /config.ini
- Moved /tftpboot/resolver.php -> /lib/resolver.php
- Added /lib/config.php
  - include /lib/config.php in resolver.php and index.php
- Changed $config array
- Remove print_r($config['main']['base_path']) from config.php
- Add isValidRequest() function
- Use Boolean in tree_base data
- Simplify config['subdirs'] substitution
- Add lib/utils.php file
- Added simple shell/utf/html escape checking
- Added a collection of test cases (we need some more escape checking ones)
- Added lib/logger.php (copied from tftpserver.php, so that it can be reused for that).
- Clarify config.ini logformat
- Update logger implementation
- Replaced index.php with version that uses lib/resolver.php
- Replaced ../etc/nginx/sites-available/tftpboot Example file

tftpboot/ringtones/mkringlist.sh

@@ -6,7 +6,7 @@ if [ ! -z "`ls *.pcm 2>/dev/null`" ]; then
 		basename=`basename ${filename} .pcm`
 		echo -e "\t<Ring>" >>$outfile
 		echo -e "\t\t<DisplayName>${basename}</DisplayName>" >>$outfile
-		echo -e "\t\t<FileName>ringtones\${filename}</FileName>" >>$outfile
+		echo -e "\t\t<FileName>ringtones\\${filename}</FileName>" >>$outfile
 		echo -e "\t</Ring>" >>$outfile
 	done
 fi
@@ -15,7 +15,7 @@ if [ ! -z "`ls *.raw 2>/dev/null`" ]; then
 		basename=`basename ${filename} .raw`
 		echo -e "\t<Ring>" >>$outfile
 		echo -e "\t\t<DisplayName>${basename}</DisplayName>" >>$outfile
-		echo -e "\t\t<FileName>ringtones\${filename}</FileName>" >>$outfile
+		echo -e "\t\t<FileName>ringtones\\${filename}</FileName>" >>$outfile
 		echo -e "\t</Ring>" >>$outfile
 	done
 fi