Upgraded SQLite3 library to version 3.7.7.1

Author: nickgammon

sqlite3/readme.txt

@@ -1,6 +1,6 @@
 Sqlite3 built as follows:
 
-1. Download recent version from http://www.sqlite.org/sqlite-amalgamation-3070603.zip
+1. Download recent version from http://www.sqlite.org/sqlite-amalgamation-3070701.zip
 
 2. Unzip the file
 
@@ -14,7 +14,7 @@ sqlite3ext.h
 3. Edit: sqlite3.c and add the following lines to the start of it:
 
 // These first few lines added by NJG
-// version 3.7.6.3
+// version 3.7.7.1
 # pragma warning (disable : 4018)  // signed/unsigned mismatch
 # pragma warning (disable : 4022)  // pointer mismatch for actual parameter x
 # pragma warning (disable : 4047)  // 'void ** ' differs in levels of indirection from 'long *'
@@ -34,3 +34,5 @@ sqlite3ext.h
 #define SQLITE_ENABLE_FTS3 1
 #define SQLITE_ENABLE_FTS3_PARENTHESIS 1
 #define SQLITE_ENABLE_RTREE 1
+#define SQLITE_USE_URI 1
+