fix for ESBJAVA-3290
fix ESBJAVA-3290
fix for ESBJAVA-3290
fix ESBJAVA-3290
Merge branch 'ESBJAVA-3290' of github.com:rajithsiriwardana/wso2-synapse into ESBJAVA-3290

Conflicts:
	modules/commons/src/main/java/org/apache/synapse/commons/builders/XFormURLEncodedBuilder.java
Misleading error message thrown from spring mediator fix
hide password from the log when exception throws from vfs
null check made on file's parent when it is root level folder
Merge pull request #159 from vanjikumaran/master

ESBJAVA-3430
Fix ESBJAVA-3431
Merge pull request #160 from malakasilva/master

Fix ESBJAVA-3431
Fix ESBJAVA-3431
Fix ESBJAVA-3431
Merge pull request #161 from malakasilva/master

Fix missing import
hide vfs password from sender level
hide password from the log when exception throws from vfs
VFS locking release feature
Merge pull request #167 from malakasilva/master

VFS locking release feature
Fix cincurency issue
Merge pull request #168 from malakasilva/master

Fix cincurency issue