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
Rule 70% Completed for LP
Merge branch '7220' of github.com:danbarretodev/chamilo-lms-icpna into 7220
Clean db_main - refs BT#7220
Merge branch '1.9.x' of https://github.com/beeznest/chamilo-lms-icpna into 7220
Merged with Cesar's changes for home icons edition
Added api_error_log()
Change undefined variable in getting course extra_fields in api_get_course_info_by_id()
return state by lp id - refs BT#7220
Fix params, now working
Changed style folder name to avoid overwriting