fix typos

small cleanups

Handle MySQL 5.5 authentication features.
Authentication protocol can be changed, a new raw
packet is introduced, which includes only the "encrypted"
data for the auth plugin, sent after

Handle MySQL 5.5 authentication features.
Authentication protocol can be changed, a new raw
packet is introduced, which includes only the "encrypted"
data for the auth plugin, sent after change protocol (0xFE)
is sent to the client.

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Update on the mysqlnd auth plugins, changed the plugin
structure and where they load themselves.
0xFE packets (method switch) needs to be done, additional
wire-level packet to be created

Update on the mysqlnd auth plugins, changed the plugin
structure and where they load themselves.
0xFE packets (method switch) needs to be done, additional
wire-level packet to be created to be parsed and the packet
doesn't fit the PACKET_OK structure anymore.

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Change things to allow passing of the password length
to mysqlnd. This is needed as a password might include
a \0 and thus we need to be binary safe.

grok the MySQL 5.5 extended handshake.
Move the authentication routines, the native ones, to
separate file and encapsulate them in a plugin.
Depending on the server version and what the s

grok the MySQL 5.5 extended handshake.
Move the authentication routines, the native ones, to
separate file and encapsulate them in a plugin.
Depending on the server version and what the server
requests (or doesn't in old versions) load the authentication
plugin to handle it.
Currently only the 4.1+ authentication is supported. More to come

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