use short index name for all adapter

[timfjord]

During installation of copywriting with rails 4, mysql and refinery from master i am getting this error on migration step:

rake db:migrate
==  CreateCopywritingTranslationTable: migrating ==============================
-- rename_column("copywriting_phrase_translations", :copywriting_phrase_id, :refinery_copywriting_phrase_id)
rake aborted!
An error has occurred, all later migrations canceled:

Index name 'index_copywriting_phrase_translations_on_refinery_copywriting_phrase_id' on table 'copywriting_phrase_translations' is too long; the limit is 64 characters

So this pull request should fix this.

[ugisozols]

How about making index name shorter by default so that it works in all dbs? /cc @unixcharles

[timfjord]

This would even better, so we can remove this conditions at all

[unixcharles]

I agree, lets do that instead.

[timfjord]

@unixcharles @ugisozols i just update pull request. So i removed with_short_sqlite_compatible_index method and renaming index name on all adapters

[ugisozols]

Thanks @timsly!

[unixcharles]

thank you guys!