fix missing columns in c_tool table refs BT#7204
link to edit icons
minor: code style, spaces instead of tabs
minor: code style, spaces instead of tabs
Permitir la definición de tooltips para cada herramienta
tooltips on tool icons, resize icons if larger or wider than 64px, fixed black background when resizing a png refs BT#7204
tooltips (javascript) on tool icons  BT#7204
course introduction section: added delete button for edited icons refs BT#7204
course introduction section: redirect to course home after edit o delete an icon refs BT#7204
fixed confirmation message when editing or deleting tool icon refs BT#7204
Add tables to db_main.sql to install it
Update tables in db_main.sql
Add constants to sequence tables
Add function to verify which lesson are available for the user. -refs #7220
Update tables in db_main.sql
Add sequence.lib.php to interact whit sequence tables  -refs #7220
Update tables and inserts in db_main.sql
Add function to execute formula, need add more functions -refs #7220
Update tables and inserts in db_main.sql
Update function to execute formula
Add more function to sequence class
Add some function called in learnpath files -refs #7220
Complete functions for rule with LP, doesn't work all, but I will fix them -refs #7220
Some fixes, now insert into sequence tables
More Fix
Rule %70 works, I'll test it more and then comment it, the problem was when used Database::array and thought that would return a complete array, but was just a row -refs #7220
Fix course_home student_view, working