Fix names of imported files produced by tools installed from Galaxy toolshed.

[hackdna]

Analysis result files produced by tools installed from Galaxy toolshed look like 4fe75826-3d88-11e2-945c-00163e2777e7,toolshed.g2.bx.psu.edu/repos/jjohnson/igvtools/1.0,exp_file,output_tdf.igv.tdf
The problem is that toolshed tool names include slashes which are interpreted as directory name separators when saving those files to disk.

Pivotal Tracker story 40979989 (Ilya Sytchev - Dec 10, 2012)

[rpark37]

Commit by Richard Park
8cf832e

[#40979989] Fix names of imported files produced by tools installed from Galaxy toolshed. (Richard Park - Jan 17, 2013)

[hackdna]

Commit by Ilya Sytchev
59434f1

[#40979989] Changed parseToolName() to parse_tool_name() for naming consistency. Added unit tests for parse_tool_name(). (Ilya Sytchev - Jan 18, 2013)