Added new functionality to 'readAl' in order to get some useful information about input alignment (e.g. alignment length, sequence number, max or min sequence length/names, etc)
Recoded (and possibly improved) the way 'readAl' provides information (-info, -type, -format parameters) about input alignment. Now it should be easier to parse output information.
Added new file containing all #define statement on the program. On this way, it should be easier to mantain source code for trimAl, readAl & statAl.