start of tests
* noDiscordant was incorrectly defaulting to 1, preventing the test reads from being used.
* isCpG/isCHH/isCHG weren't always checking both cases when looking for their respective motifs.
Forgot to remove some printf()s
* Fixed a bug that allowed consecutive CpGs to be counted as CHHs when --noCpG was used.
* Fixed a but wherein the header track was always being written to the CpG bedgraph file.
add test script
Merge pull request #2 from dpryan79/tests

start of tests