Corrected install and build process

Corrected classpath reverence was incorrect
install_code correct filepath
Use database url/host when slplus is called.
1 sqlplus sessions instead of 3

The installation of the application, code and file in 1 sqlplus session.
Using the splitted files to install the application.
In build process clean up the complete application sql file. And correct
the install.sql and create_application.sql file ready for installation.
Export and splitting

Export and splitting of the export file in 1 task.
Correcting for the id's with the offset after the splitting instead of
before. Remove export date and time from file. Reset the file location
in init.sql
Correcting grunt file
Correcting gruntfile
Merge pull request #3 from nvanbaren/Export-and-import-application-optimalisation

Export and import application optimalisation