added thin qr
Tests: Action Attributes instead of global setup (simplifies hierarchy), some net4.5 fixes
SparseMatrix marked as Serializable

MathNet.Numerics.LinearAlgebra.Storage.MatrixStorage and
MathNet.Numerics.LinearAlgebra.Storage.SparseCompressedRowMatrixStorage
have been marked as Serializable

Update by ruegg: mark all other storage classes as Serializable as well,
get rid of tabs
Sparse: fix bug in submatrix-clear
Sparse: perf on setting and clearing sparse matrix fields
LA: matrix.ClearRow, ClearColumn, ClearSubMatrix
NuGet: tweak package titles and descriptions
Sparse: proper Clear-submatrix implementation
Sparse: better unit test for Clear-submatrix
Fix comment grammar, some cosmetics
LA: migrate vectors to storage classes (major)
Sparse Vectors: post-refactoring cleanup
LA: rename matrix Data property for consistency (non-breaking)
LA: static CreateRandom for dense matrix and vector (replacing complicated templating approach)
Distributions: fix geometric sampling #31
F#: Simplify and clarify project file structure
F#: add modules for random numbers and distributions
Distributions: consistent sample methods for continuous distributions #32
Distributions: consistent sample methods for discrete distributions #32
LA: TransposeThisAndMultiply(vector): fix wrong size of auto-provided result vector