Remove static, add getter and setter.

* Rename some varaible names and struct names in RPC

* add a TsFile sketch tool

* Fix changing to read-only mode when flushing Tsfile on HDFS

using String.getBytes(utf-9).length to replace string.length() in ChunkGroupMetadata for supporting Chinese (#396)

* Add configuration ip and port
* Add config of tsfile_storage_fs in iotdb-engine.properties

* Add TSFileFactory to create files according to FS in TsFile module

* Add getBufferedReader and getBufferedWriter in TSFileFactory

* use jdbc to connect iotdb in spark

* Merging the default 'show timeseries' into 'show timeseries <path>'

* Modify the quickstart and the readme

* rename mean to avg

Move a util class to test dir and fix some minor problems

* [IOTDB-189] Support compatibility of HDFS file and java file

* Fix "input line is too long" in windows

* Use IoTDBFileFactory to create File and HdfsFile

[IOTDB-202] fix tsfile example data type

1.remove the redundant field measurementSchemaList in Schema.java 2. Change all the str.length() to str.getBytes().length while calculating the serialized byte size

transform old form to new form and use a parameter to control

* add watermark feature