The link from the institution identifier or matrikel to a students ESF is now only accessable for the role InstitutionalResourceManager
The link from the institution identifier or matrikel to a students ESF is now accessable by the role administration
A new boolean variable 'hasRights' is set to make the link from the institution identifier or matrikel to a students ESF is now only accessable for the role InstitutionalResourceManager
Replaced the variable 'hasRights' with 'showEsfLink' and shortened some classes regarding that issue
Removed an empty line
some code optimisation
Fix some minor problems and optimize cosmetics
Merge: Allow only resource manager to see esf of students, fixes #5

* issue5:
  Fix some minor problems and optimize cosmetics
  some code optimisation
  Removed an empty line
  Replaced the variable 'hasRights' with 'showEsfLink' and shortened some classes regarding that issue
  A new boolean variable 'hasRights' is set to make the link from the institution identifier or matrikel to a students ESF is now only accessable for the role InstitutionalResourceManager
  The link from the institution identifier or matrikel to a students ESF is now accessable by the role administration
  The link from the institution identifier or matrikel to a students ESF is now only accessable for the role InstitutionalResourceManager