add note about sqlcipher

lib/static/see_smiley_name.sh

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+#!/bin/bash -e
+# File: see_smiley_name.sh
+# Date: Sun Jan 11 21:37:06 2015 +0800
+# Author: Yuxin Wu <[email protected]>
+
+cat tencent-smiley.json | jq 'to_entries | group_by(.value) | .[] | "---------",.[].key'

sqlcipher/LICENSE

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+Copyright (c) 2008, ZETETIC LLC
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+    * Neither the name of the ZETETIC LLC nor the
+      names of its contributors may be used to endorse or promote products
+      derived from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY ZETETIC LLC ''AS IS'' AND ANY
+EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL ZETETIC LLC BE LIABLE FOR ANY
+DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

sqlcipher/README.md

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+
+## NOTE
+
+For convenience, I include the binary version of sqlcipher 2.1.1.
+
+User can also choose to download and install sqlcipher 2.1.1 from their trusted source, such as:
+https://launchpad.net/ubuntu/+source/sqlcipher/2.1.1-2