#38 Return null to abort IPreHandler/IPostHandler chain
#39 Allow to specify initial data element for create method of ListNode
and BiListNode
#40 Packages imported dynamically should also be imported statically
with an optional flag for org.jruyi.cmd module

#41 Implementation of "route:*" commands should be moved to org.jruyi.me
module
#42 Improve script ruyi and ruyi-cli
#43 Implement varint codec for buffer
#44 Reformat copyright
#45 Initialize the capacity of StringBuilder in BytesBuilder.append(String)
#46 Add IUnitChain.remaining for codec to know the number of bytes remaining in the chain
#47 Read/Write bytes from/to InputStream/OutputStream for BytesBuilder
#48 NullPointerException thrown from MessageQueue.bindEndpoint when there are endpoints activated before MQ was activated
#49 CLI command jruyi:grep does not work
#50 format ruyi-cli command list printing
Bumped version number, 1.2.0
jruyi-api ->1.2.0
jruyi-cli -> 1.0.4
jruyi-launcher -> 1.0.3
jruyi-system -> 1.2.0
org.jruyi.common -> 1.2.0
org.jruyi.cmd -> 1.1.2
org.jruyi.clid -> 1.1.1
org.jruyi.io -> 1.2.0
org.jruyi.me -> 1.1.1
org.jruyi.timeoutadmin -> 1.1.1
org.jruyi.workshop -> 1.1.2