For #1935 LibLinear unit test added.
Fix the function solve_l2r_lr_dual failed, when set bias is true.
Seting prob->n correctly.
Add 7 Tests.
Merge the common code into a function.
Add 2 LAR test case.
Add 2 LAR test case.
Naming correct for lars and liblinear unit-testing.
Merge remote-tracking branch 'shogun/develop' into develop
Merge pull request #1945 from pl8787/develop

For #1935 LibLinear unit test added.
added tree structures for id3
revert the changes of 56ceab6 for main_unittest.cc
Solve memory leak problem, but uninitial values jump problems didn't fixed. I need help~
remove unwanted SG_SDEBUG messages from unit-test
add streaming mmd, refactor linear time mmd
fix doc error
BinaryTreeMachineNode created
Merge pull request #1960 from lambday/develop

remove unwanted SG_SDEBUG messages from unit-test
Merge pull request #1957 from pl8787/develop

Solve memory leak problem, but uninitial values jump problems didn't fix...
Merge pull request #1959 from lambday/feature/btest

add streaming mmd, refactor linear time mmd