Add noVNC HTML5 client connect possibility to our http server.

Pure JavaScript, no Java plugin required anymore! (But a recent browser...)
Fix typo && use proper website.
httpd: fix sending of binary data such as images.

We do this simply by omitting the content-type and let the browser
decide upon the mime-type of the sent file. Only exception is
'index.vnc', where we do set the content-type since some browsers
fail to detect it's html when it's ending in '.vnc'

Also, remove superfluous #defines. We close the connection always.
Hopefully fix the crash when updating from 0.9.7 or earlier

For backwards-compatibility reasons, we can only add struct members to the
end. That way, existing callers still can use newer libraries, as the
structs are always allocated by the library (and therefore guaranteed to
have the correct size) and still rely on the same position of the parts
the callers know about.

Reported by Luca Falavigna.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Fix memory leak

I was debbuging some code tonight and i found a pointer that is not been
freed, so i think there is maybe a memory leak, so it is...

there is the malloc caller reverse order:

( malloc cl->statEncList )
	<- rfbStatLookupEncoding
	<- rfbStatRecordEncodingSent
	<- rfbSendCursorPos
	<- rfbSendFramebufferUpdate
	<- rfbProcessEvents

I didnt look the whole libvncserver api, but i am using
rfbReverseConnection with rfbProcessEvents, and then when the client
connection dies, i am calling a rfbShutdownServer and rfbScreenCleanup,
but the malloc at rfbStatLookupEncoding isnt been freed.

So to free the stats i added a rfbResetStats(cl) after rfbPrintStats(cl)
at rfbClientConnectionGone in rfbserver.c before free the cl pointer. (at
rfbserver.c line 555). And this, obviously, is correcting the memory leak.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Update AUTHORS

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Fix deadlock in threaded mode when using nested rfbClientIteratorNext() calls.

Lengthy explanation follows...

First, the scenario before this patch:

We have three clients 1,2,3 connected. The main thread loops through
them using rfbClientIteratorNext() (loop L1) and is currently at
client 2 i.e. client 2's cl_2->refCount is 1. At this point we need to
loop again through the clients, with cl_2->refCount == 1, i.e. do a
loop L2 nested within loop L1.

BUT: Now client 2 disconnects, it's clientInput thread terminates its
clientOutput thread and calls rfbClientConnectionGone(). This LOCKs
clientListMutex and WAITs for cl_2->refCount to become 0. This means
this thread waits for the main thread to release cl_2. Waiting, with
clientListMutex LOCKed!

Meanwhile, the main thread is about to begin the inner
rfbClientIteratorNext() loop L2. The first call to rfbClientIteratorNext()
LOCKs clientListMutex. BAAM. This mutex is locked by cl2's clientInput
thread and is only released when cl_2->refCount becomes 0. The main thread
would decrement cl_2->refCount when it would continue with loop L1. But
it's waiting for cl2's clientInput thread to release clientListMutex. Which
never happens since this one's waiting for the main thread to decrement
cl_2->refCount. DEADLOCK.

Now, situation with this patch:

Same as above, but when client 2 disconnects it's clientInput thread
rfbClientConnectionGone(). This again LOCKs clientListMutex, removes cl_2
from the linked list and UNLOCKS clientListMutex. The WAIT for
cl_2->refCount to become 0 is _after_ that. Waiting, with
clientListMutex UNLOCKed!

Therefore, the main thread can continue, do the inner loop L2 (now only
looping through 1,3 - 2 was removed from the linked list) and continue with
loop L1, finally decrementing cl_2->refCount, allowing cl2's clientInput
thread to continue and terminate. The resources held by cl2 are not free()'d
by rfbClientConnectionGone until cl2->refCount becomes 0, i.e. loop L1 has
released cl2.
Added comments.
Update version number in autotools && cmake, NEWS entry.
Update ChangeLog for 0.9.8.1.
When GetCredential() callback is not set, don't use authentications requiring it.

The auth methods that employ Getcredential() will only be used if the client's
GetCredential callback is actually set.
Add 0.9.8.2 NEWS entry.
Fix tiny typo.
novnc client: use the client's notion about the server hostname instead of what the server thinks.
Rename 'classes' dir to 'webclients'.
Move the java stuff into webclients/java-applet.
Merge branch 'included-novnc'
Use AM_SILENT_RULES only when it's actually available.

Otherwise building breaks with older make versions. Happens on OS X
10.6 for instance.
Fix build error when libpng is available, but libjpeg is not.

The png stuff in tight.c depends on code in tight.c that uses libjpeg
features. We could probably seperate that, but for now the dependency
for 'tight' goes:

PNG depends on JPEG depends on ZLIB.

This is reflected in Makefile.am now.

NB: Building tight.c with JPEG but without PNG is still possible,
    but nor the other way around.
Merge branch 'master' of https://github.com/watkipet/libvncserver