Remove stupid assertion.

Add licence header to solc.

libdevcrypto/EC.cpp

@@ -66,7 +66,7 @@ void dev::crypto::decrypt(Secret const& _k, bytes& io_text)
 	p.resize(d.MaxPlaintextLength(io_text.size()));
 	// todo: use StringSource with _c as input and output.
 	DecodingResult r = d.Decrypt(pp::PRNG(), io_text.data(), clen, p.data());
-	assert(r.messageLength);
+//	assert(r.messageLength);
 	io_text.resize(r.messageLength);
 	io_text = std::move(p);
 }

libqethereum/QEthereum.cpp

@@ -725,6 +725,8 @@ void QWhisper::poll()
 				{
 					cwarn << "Silently decrypting message from identity" << w.second.abridged() << ": User validation hook goes here.";
 					m = e.open(m_ids[w.second]);
+					if (!m)
+						continue;
 				}
 				else
 					m = e.open();

libqethereum/QEthereum.h

@@ -233,7 +233,7 @@ public:
 	// Watches interface
 	Q_INVOKABLE unsigned newWatch(QString _json);
 	Q_INVOKABLE void killWatch(unsigned _w);
-	void clearWatches();
+	Q_INVOKABLE void clearWatches();
 	Q_INVOKABLE QString watchMessages(unsigned _w);
 
 public slots:

solc/main.cpp

@@ -1,3 +1,24 @@
+/*
+	This file is part of cpp-ethereum.
+
+	cpp-ethereum is free software: you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation, either version 3 of the License, or
+	(at your option) any later version.
+
+	cpp-ethereum is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License
+	along with cpp-ethereum.  If not, see <http://www.gnu.org/licenses/>.
+*/
+/**
+ * @author Christian <c@ethdev.com>
+ * @date 2014
+ * Solidity abstract syntax tree.
+ */
 
 #include <string>
 #include <iostream>