add load function for simple sampled suffix array
add typedef
add typedefs and load function for succinct lcp
add typedefs and load function for sampled inverse suffix array
add function psvz returning 0 instead of -1 if there is no previous smaller value
fix LCP class
add simple CST clas
add cst test program to Makefile
add function to find next value smaller than a given reference value to RMM tree class
added more compressed suffix tree functionality