Merge pull request #1152 from tklein23/develop

SVMLight: Fixing type conversion when printing number of support vectors.
Merge pull request #1154 from tklein23/develop

README.developer: Updated the git instructions for committing patches to upstream
Fix leak in SGMatrix::get_row_vector function
Fix leak in Random_unittest
Fix leak in Serialization.liblinear unit test
Fixed memory leak in GaussianLikelihood and StudentsTLikelihood unit tests
Merge pull request #1159 from votjakovr/develop

Fixed memory leak in GaussianLikelihood and StudentsTLikelihood unit tests
Added missed unrefs in T-SNE unit test. Closes #1155
CKernel: Fixed uninitialized "lhs_equals_rhs"
CCustomKernel: Fixed memory leak in unit test.