Add the support to the TinyInt(i.e. byte) and (Unsigned)SmallInt(i.e.  short).
Commit the changes into the master
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'

Conflicts:
	src/main/java/com/salesforce/phoenix/schema/PDataType.java
Merge pull request #273 from JingchengDu/master

Add the support to the TinyInt and (Unsigned)SmallInt