gh-158 : disable specialization in management

- From the managment screen the user is able to disable a specialization
if there are no active employments 
- Disabled specializations are not offered from the corresponding
suggester.
gh-156: added new permission SEARCH_RANK_INFO
Merge branch 'gh-158' into next
added sql script ADEIES_MAKROXRONIES
gh-160 : we are now able to add improvements to schools in all regions
(regions are deprecated)

Also some UI refactoring has occured.
gh-160 : fixed report that was missing some transfers due to applying
ORDER clause on Null values.
gh-160 : fixed future transfers.
gh-29 : employee view now uses the employeeServiceAllocations manager
gh-29 : service allocation insertation works !
gh-29 : service allocation can now be edited.
gh-29 : removed old create service allocation page.
gh-29 : display service allocation button only if permission allows.
fixed an issue with transfers to other PYSDE UI not working correctly.
added fail safe code in school year management
fixed employee info creation
gh-130 : regular employement entry service act & date is being
propagated when upgrading school year.
gh-63 : fixed auto-activation of service allocations
fixed school year upgrade
when upgrading year update the current school year as well.
better handling for employees leaving PYSDE