Merge pull request littlefs-project#135 from johnlunney/patch-1

Add missing word (and reflow text)

Fixed several small issues found during wider testing

- Fixed cache tarnishing issue where flush did not clean up read caches
- Removed extra alloc acks which would prevent file relocations from
  resolving on an exhausted filesystem
- Removed unsigned comparison < 0 from changed in file seek
- Fixed bug in lfs_dir_getslice with using gtag's size
- Removed warnings around PRIu32 used 16-bit types in debug info

Changed release script to generate drafts

Modified release script to create notes only on minor releases

Before, release notes with a list of changes were created every
patch release. Unfortunately, it looks like this will create a lot of
noise on github, with a notification every patch release, which may be
as often as every time a PR is merged.

Rather than creating all of this noise for relatively uninteresting
changes, the script will now stick to simple tags, and create the
release notes only on minor releases.

I think this is what several of you were originally suggesting,
sorry about the journey, at least I learned a lot.

Fixed release script issue with fetching recent tags

Fetching all tags was triggering the pagination system inside the github
API. This prevent version tags from being found.

Modified to use the version tag prefix in the ref lookup, however this
still may cause an issue if there are still enough patch releases to trigger
pagination.

Simpleish solution is to grab the link header to jump to the last page,
since pagination results appear to be in sorted order.

Bumped minor version to v1.6

Merge pull request littlefs-project#80 from FreddieChopin/fix-memory-…

…leaks

Fix memory leaks

Merge pull request littlefs-project#74 from FreddieChopin/cxx-guards

Add C++ guards to public headers

Added error when opening multiple files with a statically allocated b…

…uffer

Opening multiple files simultaneously is not supported without dynamic memory,
but the previous behaviour would just let the files overwrite each other, which
could lead to bad errors down the line

found by husigeza

Merge pull request littlefs-project#26 from Sim4n6/master

Added a .git ignore file