DAVILA 0.4 now parses a mysqldump

Added new parser in Parser.pde  parseMySQLDump which will handle the output from the mysqldump command.
Cleaned up some unncessary backslashes in the parseDjangoSQL method call.
Added new method call getPrimaryKey in Entity class (needed in parseMySQLDump)
Updated DAVILA.pde to make parseMySQLDump the default parser.
Added mysqldump example file (data/schemaDump.sql) and renamed data/schema.sql to data/schemaDjango.sql to differentiate between the two files.
Updated README.TXT with information on the new parser.