Renamed stddev into rms, and added a true stddev function.
Fixed vec::concretize() const correctness.
Added shift().
Added unit test for shift().
Improved error message of integrate().
Added 'ended' flag to progress printer so that progress line never gets printed more than once.
Implemented && and || operator with scalar bool for bool vectors.
Added dimension specialized 'rms' and 'stddev'.
Added convolve().
Fixed compile time bug in qstack.
Added 'read_table_loose()' for named variables.
Improved performances of bootstrap functions.
Fixed compile error in vec<T*>::operator(...) const.
Added 'run_dim' function.
Added unit test for run_dim().
Improved return_type to be able to handle lambda functions and functors.
Added radial_profile().