invalid characters bug fixed
1) doc_nrel_partition_decomposition added
2) some bus fixed
doc_nrel_partition_basic_sequence and doc_nrel_partition_logic_sequence implemented
doc_nrel_introduction bug fixed
doc_nrel_partition_basic_sequence using checked
Merge pull request #3 from ShunkevichDV/master

Descriptions of partitons fixed. Correct keynodes used