Notes on how this package can be tested.
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This package can be tested by executing

    sh installation-test

in order to confirm its integrity.

DSSP program predicts secondary structure from atom coordinates, given in 
"ATOM" section [1] of PDB file. Other sections can be ignored. 

Test in `installation-test` checks the following:

1. runs mkdssp on file with small portion of "ATOM" section records (2OSL_fragment.pdb). 
This fragment file contains 2 chain fragments with 4 aminoacids in each - output results 
are not very interesting.

2. runs mkdssp on some typical pdb file (5bmg.pdb), taken randomly from 
RCSB Protein Data Bank database [2]. This run provides fancier results, 
because pdb file is taken as it is.

To test manually, run `mkdssp` like this (program output will be shown in stdout):

```
mkdssp -i <some pdb file name>
```

To see other options, call `mkdssp` without parameters or with `-h` key.

References:

[1]: "ATOM" section description in current PDB format specification
    http://www.wwpdb.org/documentation/file-format-content/format33/sect9.html#ATOM
[2]: RCSB PDB database (one of the possible sources of .pdb files)
    http://www.rcsb.org/pdb/home/home.do
