rational approximation using direct solvers added
Merge pull request #1203 from lambday/feature/log_determinant

rational approximation using direct solvers added
minor documentation fix in log-det framework
Merge pull request #1204 from lambday/feature/log_determinant

minor documentation fix in log-det framework
added base class for AJD and an example of a derived class header
added JADiag.cpp and made some of the other suggested edits
fixed some minor mistakes so that it builds
swithed to cmath for machine eps and changed includes format
refactor evaluation of posterior and predictive distributions
Merge pull request #1206 from votjakovr/feature/gp_refactoring

refactor evaluation of posterior and predictive distributions
changed pointer V0 to use an emtpy SGMatrix
Multi-threaded dense_dot in HashedDocDotFeatures
Merge pull request #1207 from van51/feature/hashing

Made HashedDocDotFeatures thread-safe (reentrant)
added a unit test for JADiag and ifdefs for eigen3
Changed CDelimiterTokenizer behavior on consecutive delimiters
add log(normal_cdf(x)) function
Merge pull request #1210 from votjakovr/feature/gp_binary_classification

add log(normal_cdf(x)) function
bugfixes in log-det framework
Merge pull request #1208 from lambday/feature/log_determinant

bugfixes in log-det framework
Merge pull request #1205 from pickle27/develop

added base class for AJD and an example of a derived class header