renaming

[behinger]

Before 1.0 we should rename a few things:

• simulate and generate are used in different places, not clear why not same name for everything. Makes sense to me, you can simulate a design, simulate an EEG, simulate noise
• rand_onsets actually delivers distances between onsets, generate(rng,onset,...) generates the onsets

Let's collect as we go

[jschepers]

Remove inconsistency of variable/function naming:

• Examples: expdesign, allconditons vs. subject_between, both_within (I would prefer the latter)

[behinger]

generate => without "randomess" simulate => with randomness

[behinger]

simulate_noise simulate_onsets simulate_epochs ...

[behinger]

generate_design

[behinger]

this is done in 0.4.0