add libssh2_scp_recv2 to support large (> 2GB) files on windows

docs/CMakeLists.txt

@@ -119,6 +119,7 @@ set(MAN_PAGES
   libssh2_publickey_remove_ex.3
   libssh2_publickey_shutdown.3
   libssh2_scp_recv.3
+  libssh2_scp_recv2.3
   libssh2_scp_send.3
   libssh2_scp_send64.3
   libssh2_scp_send_ex.3

docs/Makefile.am

@@ -89,6 +89,7 @@ dist_man_MANS = \
 	libssh2_publickey_remove_ex.3 \
 	libssh2_publickey_shutdown.3 \
 	libssh2_scp_recv.3 \
+	libssh2_scp_recv2.3 \
 	libssh2_scp_send.3 \
 	libssh2_scp_send64.3 \
 	libssh2_scp_send_ex.3 \

docs/libssh2_scp_recv.3

@@ -8,6 +8,9 @@ LIBSSH2_CHANNEL *
 libssh2_scp_recv(LIBSSH2_SESSION *session, const char *path, struct stat *sb);
 
 .SH DESCRIPTION
+This function is \fBDEPRECATED\fP. Use \fIlibssh2_scp_recv2(3)\fP
+instead!
+
 \fIsession\fP - Session instance as returned by 
 .BR libssh2_session_init_ex(3)
 

docs/libssh2_scp_recv2.3

@@ -0,0 +1,32 @@
+.TH libssh2_scp_recv2 3 "29 Jun 2015" "libssh2 1.6.1" "libssh2 manual"
+.SH NAME
+libssh2_scp_recv2 - request a remote file via SCP
+.SH SYNOPSIS
+#include <libssh2.h>
+
+LIBSSH2_CHANNEL *
+libssh2_scp_recv2(LIBSSH2_SESSION *session, const char *path, struct_stat *sb);
+
+.SH DESCRIPTION
+\fIsession\fP - Session instance as returned by 
+.BR libssh2_session_init_ex(3)
+
+\fIpath\fP - Full path and filename of file to transfer. That is the remote
+file name.
+
+\fIsb\fP - Populated with remote file's size, mode, mtime, and atime
+
+Request a file from the remote host via SCP.
+.SH RETURN VALUE
+Pointer to a newly allocated LIBSSH2_CHANNEL instance, or NULL on errors.
+.SH ERRORS
+\fILIBSSH2_ERROR_ALLOC\fP -  An internal memory allocation call failed.
+
+\fILIBSSH2_ERROR_SCP_PROTOCOL\fP - 
+
+\fILIBSSH2_ERROR_EAGAIN\fP - Marked for non-blocking I/O but the call would
+block.
+.SH SEE ALSO
+.BR libssh2_session_init_ex(3)
+.BR libssh2_channel_open_ex(3)
+