Timeout tests (#28)

* Raise error when failing to create new channel object. 
* Added timeout settings tests.
* Added check for new local libssh install dir. Updated gitignore.
* Updated manifest
* Updated changelog

Author: pkittenis

.gitignore

@@ -5,6 +5,7 @@ build
 *~
 *.so*
 src
+local
 libssh/compile_commands.json
 wheelhouse
 .idea

Changelog.rst

@@ -8,6 +8,7 @@ Changes
 -------
 
 * Updated embedded libssh to ``0.9.5``.
+* ``Session.channel_new`` now raises ``ssh.exceptions.ChannelOpenFailure`` on failure to create new channel.
 
 0.6.0
 +++++

MANIFEST.in

@@ -6,6 +6,7 @@ include LICENSE
 include COPYING
 include ssh/*.pyx
 include ssh/*.pxd
+include ssh/*.c
 recursive-include libssh *
 include ci/build_ssh.sh
 include _setup_libssh.py

_setup_libssh.py

@@ -22,7 +22,8 @@ def build_ssh():
         os.mkdir('local/lib')
     # Depending on architecture cmake installs libraries into lib64,
     # but we don't care about that.
-    os.symlink('lib', 'local/lib64')
+    if not os.path.exists('local/lib64'):
+        os.symlink('lib', 'local/lib64')
 
     os.chdir('src')
     check_call('cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=../local -DWITH_GSS_API=ON ../libssh',