docs changes, enterprisemediawiki#691, enterprisemediawiki#557, enter…

…prisemediawiki#533

Merge pull request enterprisemediawiki#447 from enterprisemediawiki/d…

…ocs-allocation

Docs - add steps for partition allocations

Merge pull request enterprisemediawiki#372 from enterprisemediawiki/R…

…EL0_9

Release 0.9

Merge pull request enterprisemediawiki#199 from enterprisemediawiki/d…

…etectip

Improve installer user prompts

bump version to 0.2.1 for redhat fix

Merge pull request enterprisemediawiki#108 from enterprisemediawiki/v0.2

Bump to v0.2