Added initial version of release notes

Fixes #362 

See merge request !430

fix mapping summary

See #348. Do not merge until shiva summary in shemas repo is done. 

See merge request !409

Reducing number of tests in gentrap

Fixes #365 

See merge request !432

Remove insertsize tag from summary when not executed

Fixes #366 

See merge request !434

Documentation on how to create project that depends on Biopet

Fixes #323 

See merge request !431

Fixing WipeReads

Closes #361

See merge request !428

Fix vcfstats summary

Fix VCFStats such that shiva functional test with shiva summary passes. 

See merge request !429

Feature downloadsample gears

This is a change on request for project 122

See merge request !415