BC: use TopHat as default; closes #18
rewrite C code to support LongVectors; closes #13
fix "right extrema bug" for morphological filters
change mass, intensity and snr slot into numerics
reformat code
create build hook: travis-ci.org
fix determineWarpingFunctions example
fix createMassPeaks usage
Revert "BC: use TopHat as default; closes #18"

This reverts commit 33c2cb0f0b384c4f6508c9dc1c3eba16b91ab8bb.

Conflicts:
	DESCRIPTION
	NEWS
	man/MALDIquant-package.Rd
Merge branch 'averageMassSpectra'
correct "load package" comments
add C implementation of colMedians
add case insensitve .match.arg
add example with user defined reference peaks to determineWarpingFunctions man page; closes #34
add linear and quadratic warping functions
add method argument; remove warpingFunction argument; closes #35
add import("methods") to NAMESPACE; fixes #36
use integer values where possible
fix warpingFunction{Quadratic,Cubic} and add test case for warpingFunctions
remove .replaceNonEmptyMassObjects; closes #39