Added GetAttachmentsforTask
Categorized functionality and added more operations.

projects
-getProject
-getProjectTasks
-getProjectUesrs
-getProjectProgress
-getProjectComments

tasks
-getTask
-getTaskUsers
-getTaskAttachments
-getTaskComments
-getTaskProgress

users
-getUser
-getUserProjects
-getUserTasks
-getTimeSpentForTask
-getTimeSpentForProject
Categorized functionality and added more operations & fixed package names.

projects
-getProject
-getProjectTasks
-getProjectUesrs
-getProjectProgress
-getProjectComments

tasks
-getTask
-getTaskUsers
-getTaskAttachments
-getTaskComments
-getTaskProgress

users
-getUser
-getUserProjects
-getUserTasks
-getTimeSpentForTask
-getTimeSpentForProject