Merge pull request #13 from wso2-dev/master

Merge pull request #8
Merge pull request #14 from wso2-dev/master

Merge pull request #9
Merge pull request #15 from wso2-dev/master

Merge pull request #10
Merge pull request #16 from wso2-dev/master

Merge pull request #11
Merge pull request #18 from wso2-dev/master

update_03042014
data mapper extension changed
Merge pull request #16 from lsdeva/master

Add Constant,Contains,LowerCase operators.
Datamapper config .js extension changed to .dmc
Merge pull request #17 from sohaniwso2/master

Fixing TOOLS-2404
Merge pull request #17 from wso2-dev/master

Merge pull request #12
Introducing data mapper configuration dialog
Merge pull request #18 from Gayany/master

Introducing data mapper configuration dialog
Merge pull request #16 from wso2-dev/master

Merge pull request #18 from Gayany/master