Putting population into column major format
Adding functions to loop over sites
Merge branch 'master' of github.com:UCL/LatBo.jl

* 'master' of github.com:UCL/LatBo.jl:
  removed optional arguments
  Added additional optional arguments
  added missing bracket
  Added varaibles for colorkey label
  test passed plot labels
  Adding labels?
  changed function name for plotting
  updated spelling in test/plot_frame.jl
  unified spellings of visualisation
  update varname typo
  Spelling correction
  creation of visualisation module
  updated test name and fact nrows
  updated fact to check
  corrected variable name
  Updated position of using declarations in functions
  Incorrect test definition
  Ameded error due to confused versions
  Corrected file name
  Added basic plot and plot frames functions

Conflicts:
	src/LatBo.jl
	test/runtests.jl
Merge branch 'master' of github.com:UCL/LatBo.jl

* 'master' of github.com:UCL/LatBo.jl:
  updated in function call to Gadfly plot
  amended variable names xlab now xlabel
  Added Zou-He boundary conditions (inlet/outlet/no-slip)

Conflicts:
	test/runtests.jl