Implement XDG compliance, logging, and improved 401 error handling

- Install to ~/.local/bin/winamp-mpris
- Use ~/.local/state/winamp-mpris/bridge.log for logging
- Use $XDG_RUNTIME_DIR/winamp-mpris.pid for PID management
- Add detailed user notification for 401 Unauthorized errors
- Add install.sh for automated, standard-compliant setup
- Include Winamp Web Interface source code and installer in repository

Wawi Source/types.h

@@ -0,0 +1,108 @@
+// Global types and definitions
+
+// list to store user information from ini file
+struct user
+{
+	char name[20];
+	user * next;
+};
+
+
+// return values from DeletePlaylistEntry
+#define DPE_OK			1
+#define DPE_NOREAD		2
+#define DPE_NOWRITE		3
+
+
+// playlist for deleting items
+struct playlistitem
+{
+	int number;
+	char time[10];
+	char name[MAX_PATH];
+	char path[MAX_PATH];
+	playlistitem * next;
+};
+
+struct fileinfo
+{
+	char path[MAX_PATH];
+	char name[MAX_PATH];
+	bool playlist;
+	bool urlsct;
+	fileinfo *next;
+	fileinfo *prev;
+};
+
+struct filesearch
+{
+	fileinfo *firstfile;
+	fileinfo *firstdir;
+	int dnodes;
+	int fnodes;
+};
+
+// Request IDs
+#define RID_GET			101
+#define RID_HEAD		102
+
+// Image types
+#define IMG_GIF			301
+#define IMG_ICO			302
+
+// Access level IDs. These get OR-ed together to come up with a single value
+#define AUTH_ANON		0		
+#define AUTH_BROWSE		1
+#define AUTH_DOWNLOAD	2
+#define AUTH_PLAYLIST	4
+#define AUTH_CLEAR		8
+#define AUTH_CONTROL	16
+#define AUTH_SERVER		32
+
+// Target frames
+#define T_NONE			601
+#define T_MAIN			602
+#define T_BOTTOM		603
+#define T_TOP			604
+
+// holds information about 1 name/value pair  ...?<name>=<value>&...
+struct argument
+{
+	char name[30];
+	char value[128];
+};
+
+// Main connection information structure
+struct http_request
+{
+	char user[20];					// logged on user (or 'anon')
+	char request[10];				// 'GET', 'HEAD' etc
+	int reqID;						// integer representing the above
+	char file[512];					// full requested url
+	char page[MAX_PATH];			// just the page, without arguments
+	char http_version[10];			// HTTP Version; eg. "HTTP/1.0"
+	int responsecode;				// HTTP response; 200, 400, 401 etc
+	char realm[50];					// authentication realm
+	int auth;						// access level
+	argument pairs[50];				// name/value pairs for arguments
+	int num_args;					// number of arguments
+};
+
+
+#define BUF_LEN 10000
+
+// Return states
+#define ST_NONE			200
+#define ST_CLOSE		201
+#define ST_CLOSEBODY	202
+
+struct connection
+{
+	char output[BUF_LEN];
+	http_request http;
+	SOCKET socket;
+	sockaddr_in remote_host;
+	int state;
+	bool log;
+
+};