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v2.7.1
* Sorting Info and Note category alphanumerically
v2.7.0
* Added text like column types Info and Note they do not count for
statistics
* New column type AdmissionScore intended for special total calculated
as average
* Added javascript to toggle visibility of controls
v2.6.3 - v2.6.6
* Adopted to use css style for sticky on top (always visible) grades
table header. Super handy for a class with a lot of students
v2.6.2
* Web page is in utf8 encoding
* Class grades histogram generation and display
* Weighted column show hard coded 1 as maximum possible
* Grade and histogram have their own styles
* Using skipAplus settings from config
* More elegant display of the grading scheme
* If database is read only and does not have the grading scheme do not
complain at normal level about inability to create it
* If histogram limits are empty do not show the histogram marker
* Added javascript to toggle visibility of histogram marker and grading scheme
* Above javascript sets cookies for visibility, so far same for all
classes for a given user
v2.6.1
* Users can see grading scheme
* Added grades in the column histogram calculation (not yet displayed)
* Added profiling script
* Small bug fixes in non web scripts
v2.6.0
* Instructor can assign letter grade cutoffs via web
* If letter grade schema table missing we create it on a fly
* Letter grade can have A+
* Better debug logging with location of proc
v2.5.2
* Class generating script loads json module too
v2.5.1
* Log file records user group
v2.5.0
* css style improved, so the grades table does not stick out so ugly
v2.4.9
* properly setting the column for the sorting cookie
* marking the column for sorting in the html output
* grave Error is reported via log facility
v2.4.8
* log is written in JSON format
v2.4.7
* CSS changes in highlighted row and table border style
v2.4.6
* Participant number is not modifiable now
v2.4.5
* Added numbered participant list display
v2.4.4
* banner import improved, now we grab CRN number too
* converted README to the pandoc markdown dialect
v2.4.3
* photos of students can be cached locally now
v2.4.2
* added photos of students to the table view
v2.4.1
* when single user grade updated, propagates total and stats on all table
v2.4.0
* added single user grade change capability
* speed up for updates with transaction wrapping
* fixes in the html formating
v2.3.3
* removed start/end for stats updates, values were not saved into the table.
v2.3.2
* added statistics info for mean, median, and stdev
* reworked start/end transaction logic, now it is safe for recursive calls
v2.3.1
* now we have default permission which are used of DB does not set them
v2.3.0
* added statistics info i.e. the highest and the lowest score
v2.2.2
* added usage section to some of the scripts
v2.2.1
* small speed ups with transaction usage
v2.2.0
* Added drop the lowest grades logic
* small improvements in error messaging (can output location of the caller)
v2.1
* Access to grades database wrapped in one transaction for speed
* Improved and sped up update grades logic
* Recoverable column deletion
* there is a way to speed profile code, see ./test_weight_calc.tcl
v2.0
* One password database for all classes for all users
* logger accept human readable message priority level
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